Page 1 This manual must be left with owner and must be hung on or adjacent to the boiler for reference. RESIDENTIAL BOILER MODELS VGH-80-CH / VGH-100-CH / VGH-120-CH / VGH-150-CH / VGH-180-CH VGH-90-CO / VGH-150-CO / VGH-200-CO HIGH EFFICIENCY CONDENSING GAS BOILER INSTALLATION AND SERVICE MANUAL QUICK CONTENTS FULL TABLE OF CONTENTS ........
Page 3: Table Of Contents
TABLE OF CONTENTS SAFETY GUIDELINES ..........................8 INTRODUCTION ............................13 ......................13 ERMS AND ABBREVIATIONS .................... 14 ODES STANDARDS AND REGULATIONS ......................14 AINTENANCE AND INSPECTION ............ 15 OR INSTALLATIONS IN THE OMMONWEALTH OF ASSACHUSETTS TECHNICAL DATA VGH RESIDENTIAL BOILERS ................. 16 Functional introduction .......................
Page 4 ........................45 NSTALLATION EXAMPLES Examples of a normal single boiler heating circuit with low loss header (preferable) ..45 Example of a multiple boiler heating circuit with low loss header ........46 CIRCULATOR CHARACTERISTICS ......................47 ....................47 RESSURE DROP AND FLOW GRAPHS Boiler resistance graph VGH-80-CH / VGH-90-CO ............
Page 5 ....................87 ROGRAMMABLE IN AND OUTPUTS 11 USING THE DISPLAY ..........................88 ........................88 ISPLAY AND BUTTONS Display icons ........................89 ........................89 CREENS AND SETTINGS De-aeration Sequence ....................... 89 ....................90 ONTROL PANEL MENU STRUCTURE Set Actual setpoint/DHW setpoint directly via the Status overview ........91 Entering the menu ......................
Page 6 15 SYSTEM TEST............................125 16 COMMISSIONING THE BOILER......................126 ..................126 IRST FLUSHING THE BOILER WITH WATER & .............. 126 ECOND FILLING VENTING THE BOILER AND THE SYSTEM ..................... 126 HIRD CHECK THE WATER FLOW ....................127 OUNTING THE ONDENSATE ......................
Page 7 IMPORTANT READ ALL OF THE FOLLOWING WARNINGS AND STATEMENTS BEFORE READING THE INSTALLATION INSTRUCTIONS DANGER Danger Sign: indicates the presence of an imminently hazardous situation that will cause death, serious personal injury or substantial property damage. WARNING Warning Sign: indicates the presence of a hazardous situation which can cause death, serious personal injury or substantial property damage.
Page 8: Safety Guidelines
1 SAFETY GUIDELINES E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 9 CONSIGNES DE SÉCURITÉ. E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 10 This boiler is equipped with a pressure switch. In the event of a blocked vent the boiler will lockout. No attempt by the user/owner should be made to put the boiler back into operation. A qualified service technician must be notified of the issue. The boiler should only be reset by a qualified service technician after they have diagnosed and corrected the issued that caused CAUTION the safety lockout of the boiler.
Page 11 INTRODUCTION Ce manuel est écrit pour l’utilisateur. Slant/Fin n'est pas responsable de tout dommage causé par ne pas suivre correctement de ces instructions. Pour service et réparation, utiliser seulement pièces de rechange de Slant/Fin. Tout documentation produit par le fabricant est sous réserve de la loi sur le droit d'auteur. Ce manuel est sujet à changement sans préavis.
Page 12 « C. Ne poussez ou tournez la manette d'admission du gaz qu'à la main ; ne jamais utiliser d'outil. Si la manette reste coincée, ne pas tenter de la réparer ; appelez un technicien qualifié. Le fait de forcer la manette ou de la réparer peut déclencher une explosion ou un incendie.
Page 13: Introduction
The distributor and manufacturer are not accountable for any damage caused by installers not correctly following these instructions. For service and repair purposes use only original Slant/Fin spare parts. All documentation produced by the manufacturer is subject to copyright law.
Page 14: Codes, Standards And Regulations
Printed Circuit Board Cross-linked polyethylene Acidity degree Proportional Integral Derivative, a control concept used in automation Particles per million Pounds per square inch, a unit of pressure Pump Circulator Polyvinyl Chloride, a thermoplastic Pulse Width Modulation Refractory Ceramic Fibers Room Thermostat Total Dissolved Solids, a characteristic used in water quality Underwriters Laboratories, American testing and certification institute Volt Alternating Current...
Page 15: For Installations In The Commonwealth Of Massachusetts
For installations in the Commonwealth of Massachusetts The following local requirements apply in addition to all other applicable NFPA requirements: For direct-vent boilers, mechanical-vent heating appliances or domestic hot water equipment, where the bottom of the vent terminal and the intake is installed below four feet above grade, the following requirements must be met: 1) If not present on each floor level where there are bedrooms, a carbon monoxide detector and alarm must be placed in a living area outside the bedrooms.
Page 16: Technical Data Vgh Residential Boilers
3 TECHNICAL DATA VGH RESIDENTIAL BOILERS UNCTIONAL INTRODUCTION The VGH boilers are central heating/combi boilers with a maximum high efficiency. Such a performance can be reached by, amongst other things, using a special heat exchanger made of stainless steel. This allows the flue gases to cool down below the condensation point, thus releasing extra heat.
Page 17: Location Of Version Numbers
Location of version numbers Burner Controller Hardware Version – To be found on the second line of the white sticker on the side of the burner controller. Figure 3.1 e.g. 957MN15_3Rh4b Burner Controller Software Versions • Press the menu button •...
Page 18: Technical Specifications Datasheets
Technical specifications datasheets VGH-80-CH / VGH-90-CO / VGH-100-CH ECHNICAL SPECIFICATIONS GENERAL Boiler category Type boiler VGH-80-CH VGH-90-CO VGH-100-CH Dimensions (h x w x d) inch (mm) 28.2" x 17.4" x 16.9" (717mm x 442mm x 429mm) gallon Water content 0.37 (1.4) 0.37 (1.4) 0.4 (1.75) (liter)
Page 19 Type boiler VGH-80-CH VGH-90-CO VGH-100-CH Low Fire % 9.4 – 8.9 Natural gas High Fire % 9.1 – 8.4 flue gas Low Fire % Propane High Fire % 10.1 4.1 – 5.0 Low Fire % Natural gas 4.6 – 6.0 High Fire % flue gas Low Fire %...
Page 20: Technical Specifications Vgh-120-Ch / Vgh-150-Co / Vgh-150-Ch
VGH-120-CH / VGH-150-CO / VGH-150-CH ECHNICAL SPECIFICATIONS GENERAL Boiler category Type boiler VGH-120-CH VGH-150-CO VGH-150-CH Dimensions (h x w x d) Inch (mm) 28.2" x 17.4" x 16.9" (717mm x 442mm x 429mm) Gallon Water content 0.55 (2.1) 0.55 (2.1) 0.83 (3.15) (liter) Weight (empty)
Page 21 Type boiler VGH-120-CH VGH-150-CO VGH-150-CH Low Fire % 9.4 – 8.9 Natural gas High Fire % 9.1 – 8.4 flue gas Low Fire % Propane High Fire % 10.1 Low Fire % 4.1 – 5.0 Natural gas High Fire % 4.6 –...
Page 22: Technical Specifications Vgh-180-Ch / Vgh-200-Co
VGH-180-CH / VGH-200-CO ECHNICAL SPECIFICATIONS GENERAL Boiler category Type boiler VGH-180-CH VGH-200-CO Dimensions (h x w x d) Inch (mm) 28.2" x 17.4" x 16.9" (717mm x 442mm x 429mm) Gallon Water content 0.83 (3.15) 0.83 (3.15) (liter) Weight (empty) Lbs (kg) 98 (44) 101 (46)
Page 23 Type boiler VGH-180-CH VGH-200-CO Low Fire % 9.4 – 8.9 Natural gas High Fire % 9.1 – 8.4 flue gas Low Fire % Propane High Fire % 10.1 Low Fire % 4.1 – 5.0 Natural gas High Fire % 4.6 – 6.0 flue gas Low Fire % Propane...
Page 24: High Altitude Operation
High altitude operation High Altitude Operation The boiler is designed to operate at its maximum listed capacity in installations at elevations less than or equal to 2000 ft (610 m) above Sea Level. Since the density of air decreases as elevation increases, maximum specified capacity will be de-rated for elevations above 2000 ft (610 m) in accordance with the table underneath.
Page 25: Specifications Input, Output, Efficiency (Ahri)
Specifications input, output, efficiency (AHRI) CH Input, MBH Model Output AHRI AFUE number Net Ratings Water, MBH VGH-80-CH 95.2 VGH-90-CO 95.2 VGH-100-CH 95.2 VGH-120-CH 95.2 VGH-150-CO 95.2 VGH-150-CH 95.2 VGH-180-CH 95.2 VGH-200-CO 95.2 Listed Input and Output ratings are at minimum vent lengths at Sea Level. Numbers will be lower with longer venting and/or altitudes greater than 2000 feet [610 m].
Page 26: Boiler Dimensions
4 BOILER DIMENSIONS VGH-80-CH / VGH-100-CH / VGH-120-CH / VGH-150-CH / VGH-180-CH 442 mm [17.4 in] 285 mm [11.22 in] 165 mm [6.5 in] DN80 mm (2x) [3 in] Connections VGH-CH boilers NPT ¾ “ Supply CH NPT ¾ “ Indirect DHW NPT ¾...
Page 27: Vgh-90-Co / Vgh-150-Co / Vgh-200-Co
VGH-90-CO / VGH-150-CO / VGH-200-CO 442 mm [17.4 in] 285 mm [11.22 in] 165 mm [6.5 in] DN80mm (2x) [3 in] Connections VGH-CO boilers NPT ¾ “ Supply CH NPT ½ “ Supply tap water NPT ¾ “ NPT ½ “ Return tap water NPT ¾...
Page 28: Accessories And Unpacking
5 ACCESSORIES AND UNPACKING Optional Accessories Depending on the selected boiler type, the selected controlling behavior for the central heating system and/or the optional use of an indirect tank, the following items are available as accessories. Contact your supplier for ordering. Item Part number 81 7106 000...
Page 29: Installation Location Of The Vgh
6 INSTALLATION LOCATION OF THE VGH General The boiler must be positioned and installed by a qualified installer or the gas company in accordance with all applicable standards, local codes and regulations (see also paragraph 2.2). Commissioning of the boiler must be done by a qualified installer or technician, who has been trained for this type of boiler.
Page 30: Installation Clearances
Installation Clearances When installing the boiler, the following table shows the clearances which are required, and which clearances are recommended considering service and maintenance. If the recommended clearances are not provided service or maintenance on the boiler might not be possible without removing the boiler from its space. Model No.
Page 31: Mounting The Boiler
Mounting the boiler Before mounting and installing the boiler the following connections must be considered: • Flue gas system and the flue gas pipe connections • Air supply system and connections • Supply and return pipe connections • Condensate and pressure relief valve drainage •...
Page 32: Connections
7 CONNECTIONS Boiler connections VGH-CH types Boiler connections VGH-CH boilers: A – Supply CH central heating B – Indirect DHW Supply C – Gas D – Indirect DHW Return E – Return CH central heating F – Condensate trap clean out. G –...
Page 33: Gas Pipe Connection
Gas pipe connection The gas supply piping must conform to all local codes and regulations and/or National Fuel Gas Code, ANSI Z223.1/NFPA 54. Pipe size running to the appliance depends on the length of pipe, the number of fittings and the maximum input requirement of all gas appliances in the residence.
Page 34 DO NOT TIGHTEN FITTINGS WITHOUT SUPPORTING THE GAS VALVE, A BACKING WRENCH MUST BE USED Install a manual Shutoff Valve. The valve must have been certified by a nationally accredited testing lab. Should overheating occur or the gas supply fail to shut off, turn the manual gas shutoff valve to off (closed).
Page 35: Condensate Drain Connection
Condensate drain connection There must be an open connection of the condensate hose into the sewage system. A possible vacuum in the sewage system must never cause suction on the boiler’s condensate drain hose. The condensate drain is placed on the left at the back on the bottom of the boiler and has a ¾...
Page 36: Expansion Vessel
Slant/Fin has available a boiler plumbing kit that is highly recommended to be used on all installations. The boiler plumbing kit (for part number see accessoires list §5.1) includes all of the items in figure 7.9 (CH) or 7.10 (CO) The Slant/Fin plumbing kit has a minimal pressure drop equivalent to less than 1 foot of head.
Page 37: Circulator Functionality
VGH CH Boiler plumbing kit VGH CO Boiler plumbing kit Figure 7.9 Figure 7.10 Dimensions for both options Figure 7.9 and 7.10 are equal. Figure 7.11 Circulator functionality Delta T monitoring: A high temperature difference between supply and return of the boiler can indicate a clogged heat exchanger or filter, or a defective circulator.
Page 38: Frost Protection
Frost protection The boiler has a built-in frost protection that automatically activates the boiler circulator when the boiler return (water) temperature drops below 50 °F/ 10 °C (programmable). When the boiler return temperature drops below the 41 °F/ 5 °C (programmable), the boiler is also ignited. The circulator and/or boiler will shut down as soon as the return temperature has reached the 59 °F/ 15 °C (programmable).
Page 39: Scalding Danger Protection
This allows for easy flushing and descaling of the plate heat exchanger. Use T-pieces for externally mounting drain valves. The Slant/Fin plumbing kit for the combi boiler includes a service valve kit that allows for the flushing of the plate heat exchanger.
Page 40: Central Heating Water Quality
Central Heating Water quality The pH value is reached with steady conditions. Maximum Contaminant Units These steady conditions will occur, when after filling allowable level the heating system (pH around 7) with fresh water, 7.5 to 9.5 the water will lose its air because of the air bleeding 50 to 150 mg/l CaCo3 operation and heating up (dead water conditions).
Page 41: Domestic Water Quality
Appropriate steps must be taken to ensure the brazed plate heat exchanger does not become plugged by scale caused by hard water or sediment. If the plate heat exchanger becomes plugged by either scaling from hard water or sediment it is not the responsibility of Slant/Fin. Maximum Level...
Page 42: Plastic Piping In The Heating System
The water quality of the mixture in the heating system and boiler must be within the requirements from Table 7.5 Corrosion-/ Scale inhibitors and recommended suppliers Rhomar Adey Producers -> Fernox Sentinel Pro-tek 922 MC1+ Inhibitors Protector F1 / Alphi 11 X100, X500 Noise reducer X200...
Page 43: Flush The System With Fresh Water
Flush the system with fresh water The water of the boiler and heating circuit must be free of any particles, debris and pollution. Therefore, the complete installation must always be thoroughly flushed with clean water before installing and using the boiler(s). If a DHW circuit is present, in case of a combi (CO) boiler, the DHW circuit must be cleaned as well.
Page 44: Manual De-Airing The Heat Exchanger
Manual de-airing the heat exchanger The heat exchanger of the boiler can be manually de-aired by means of the air-vent of the boiler. This air vent is situated at the top left of the boiler. To manually de-air the heat exchanger: •...
Page 45: Installation Examples
Installation examples XAMPLES OF A NORMAL SINGLE BOILER HEATING CIRCUIT WITH LOW LOSS HEADER PREFERABLE Boiler circulator System circulator BOILER Flow/system BOILER temperature sensor HEATING ZONE HEATING ZONE Boiler circulator Central heating circulator Check the following parameters: Check the following parameter: Boiler parameter Name Change to...
Page 46: Example Of A Multiple Boiler Heating Circuit With Low Loss Header
XAMPLE OF A MULTIPLE BOILER HEATING CIRCUIT WITH LOW LOSS HEADER NON-RETURN VALVE (low resistance type) BOILER BOILER NOT SPRING LOADED HEATING ZONE Boiler circulator System circulator Flow/ system temperature sensor valve strainer (water filter) circulator air separator pressure relief valve automatic air vent dirt separator condensate trap...
Page 47: Circulator Characteristics
8 CIRCULATOR CHARACTERISTICS Pressure drop and flow graphs VGH-80-CH / VGH-90-CO OILER RESISTANCE GRAPH Resistance graph VGH-80-CH and VGH-90-CO flowrate [gallons/minute] heat exchanger circulator VGH-100-CH OILER RESISTANCE GRAPH Resistance graph VGH-100-CH flowrate [gallons/minute] heat exchanger circulator Figure 8.2 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 48: Boiler Resistance Graph Vgh-120-Ch / Vgh-150-Co
VGH-120-CH / VGH-150-CO OILER RESISTANCE GRAPH Resistance graph VGH-120-CH and VGH-150-CO flowrate [gallons/minute] heat exchanger circulator Figure 8.3 VGH-150-CH OILER RESISTANCE Resistance graph VGH-150-CH flowrate [gallons/minute] heat exchanger circulator Figure 8.4 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 49: Boiler Resistance Graph Vgh-180-Ch / Vgh-200-Co
VGH-180-CH / VGH-200-CO OILER RESISTANCE GRAPH Resistance graph VGH-180-CH and VGH-200-CO flowrate [gallons/minute] heat exchanger circulator Figure 8.5 RAPH SHOWING THE VAILABLE IRCULATION PUMP HEAD Internal circulation head curve flowrate [gallons/minute] VGH-80-CH VGH-90-CO VGH-100-CH VGH-120-CH VGH-150-CO VGH-150-CH VGH-180-CH VGH-200-CO Figure 8.6 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 50: Minimum Required Circulator Head
Delta T, take the resistance of the boiler and add the resistance of the boiler loop piping to make a good design. The Slant/Fin plumbing kit has a minimal pressure drop equivalent to less than 1 foot of head.
Page 51: Circulators: Maximum Electrical Power
Circulators: maximum electrical power General • The inrush current of a conventional circulator is approximately 2½ x its nominal current. • The maximum switch current of the PCB is 4 A. • The total current of PCB and gas valve is approx. 0.5 A. All circulators and valves for the boiler loop, DHW, and the system that are connected to the boiler should not exceed 3.5 A.
Page 52: Flue Gas And Air Supply System
9 FLUE GAS AND AIR SUPPLY SYSTEM General venting The boiler has a positive pressure vent system. The boiler is for either direct vent installation or for installation using indoor combustion air, category IV: appliance with sealed combustion requiring certain venting systems. All combustion air is drawn from outdoors or indoor. All products of combustion are vented directly outdoors.
Page 53: Vent And Air Inlet Resistance Table
ENT AND AIR INLET RESISTANCE TABLE Minimum and maximum allowed equivalent combined vent and air inlet length: - Minimum venting length: two feet (2 ft) for all boilers. - Maximum venting length: see table below. Maximum Exhaust Length / Maximum Combustion Air Intake Length VGH-80-CH VGH-90-CO VGH-100-CH...
Page 54: Approved Manufacturers
• Never use aluminum containing vent pipes in these boilers. • Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Failure to follow instructions may result in serious injury or death. •...
Page 55: Instructions For Working With Cementing Pvc/ Cpvc Pipe Connections
PVC In Canada: Safety authorities in some jurisdictions are not allowing PVC venting materials with appliances of any kind, even if System 636 certified. Check with the local safety inspector WARNING to verify compliance. Canadian installations must comply with the current CSA B149.1 Installation Code and local building codes.
Page 56: Reducer
Centrotherm Innoflue Boiler Termination Color 2" Order # 3" Order # 3” Twin Pipe Side Wall black ISLPT0202 ISLPT0303 3" Termination Tee black ISTT0220 ISTT0320 VGH-80-CH / VGH-90-CO 3" Termination Pipe black ISEP02 or ISEP0239 ISEP03 or ISEP0339 VGH-100-CH / VGH-120-CH VGH-150-CO / VGH-150-CH 3”...
Page 57: Stainless Steel Vent
Stainless steel vent This product has been approved for use with stainless steel using the manufacturers listed. Approved stainless steel vent pipe and fittings. Supplier Type Duravent FasNSeal, FasNSeal Flex Security Chimneys Secure Seal SS/SSD/SSID Heat Fab Saf-T EZ Seal Table 9.11 *Use of FasNSeal Flex smooth inner wall vent is to be used in vertical or near vertical sections only, taking precaution to ensure no sagging occurs of the vent system.
Page 58: Air Intake/Vent Connections
IR INTAKE VENT CONNECTIONS Air intake The combustion air intake connector (see Figure 9.1) is used to provide connector combustion air directly to the unit from outdoors. A connector is provided on the unit for final connection. Combustion air piping must be supported as per guidelines listed in the National Mechanical Code, Section 305, Table 305.4 or as local codes dictate.
Page 59: Room Air
Room air The boiler may be installed with a single pipe carrying the flue products to the outside while using combustion air from the room. In this case it is very important to provide adequate combustion air: as an example in an unconfined space a VGH-200-CO boiler needs approximately 10,000 ft3 i.e.
Page 60 Water Water Furnace Furnace heater heater Figure 9.3 If combustion air is provided from the outside by means of vertical ducts like above, the free size of each opening must be minimal 1 inch per 4,000 Btu/hr of the aggregate input rating of all combustion appliances in the room.
Page 61: Air Contamination
Indoor air parts: Duravent Boiler Termination Color 3" Stock All VGH Boilers Bird Screen stainless 810004355 Table 9.13 Centrotherm Boiler Termination Color 3" Order All VGH Boilers Bird Screen black IASPP03 Table 9.14 Boiler is IP20 apply- ing a bird screen Boiler IPX4D only...
Page 62 Corrosive Contaminants and Sources • Products to avoid: Spray cans containing chloro/fluorocarbons • Permanent wave solutions • Chlorinated waxes/cleaners • Chlorine-based swimming pool chemicals • Calcium chloride used for thawing • Sodium chloride used for water softening • Refrigerant leaks •...
Page 63: Proper Vent Installation And Type Of Gas Vent Or Vent Connector
Proper vent installation and type of gas vent or vent connector For boilers for connection to gas vents or chimneys, vent installations must be in accordance with “Venting of Equipment,” of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or “Venting Systems and Air Supply for Appliances,”...
Page 64: Requirements For Installation In Canada
Requirements for installation in Canada Installations must be made with a vent pipe system certified to ULC-S636. The first three (3) feet of plastic vent pipe from the appliance flue outlet must be readily accessible for visual inspection. The components of the certified vent system must not be interchanged with other vent systems or unlisted pipe/ fittings.
Page 65 Concentric wall - two pipe to boiler Concentric wall - concentric to boiler See paragraph 9.13 for more details. See paragraph 9.13 for more details. Figure 9.9 Figure 9.8 Concentric vertical - two pipe to boiler Concentric vertical - concentric to boiler See paragraph 9.14 for more details.
Page 66 Open, Air supply from room, See paragraph 9.14 for more details. Flue outlet Air inlet Boiler is IPX4D applying a Boiler is IP20 Vented area bird screen with applying a bird elbows and if necessary, a screen only short straight pipe. Figure 9.12 Different pressure zone See paragraph 9.13 for more details.
Page 67: Wall (Horizontal) Direct Venting
Wall (Horizontal) direct venting AIR TERMINATION WALL • Follow instructions below when determining vent location to avoid possibility of severe personal injury, death, or substantial property damage. • A gas vent extending through an exterior wall must not terminate adjacent to a wall or below building extensions such as eaves, parapets, balconies, or decks.
Page 68 5. Maintain clearances as stated in this manual. Also maintain the following: Figure 9.14 Clearance above grade, veranda, porch, deck, or 12" (30 cm) 12" (30 cm) balcony see note 3 see note 3 Clearance to window or door that may be opened Direct vent only: 12"...
Page 69 Alternate two pipe sidewall termination of air intake Two pipe sidewall termination of air intake and and exhaust vent exhaust vent. 12" Min. 16" Max. Figure 9.15 Figure 9-16 Two pipe sidewall termination assembly. Figure 9.17 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 70 Multiple vent/air terminations 1. When terminating multiple boilers, terminate each vent/air connection as described in this manual. All vent pipes and air inlets must terminate at the same height to avoid possibility of severe personal injury, death, or substantial property damage. WARNING 2.
Page 71 Do not operate the appliance with the rain cap removed from the concentric terminations or else recirculation of combustion products may occur. Water may also collect inside the larger combustion air pipe and flow to the burner enclosure. Failure to follow this warning could WARNING result in product damage or improper operation, personal injury, or death.
Page 72: Roof (Vertical) Direct Venting
Roof (vertical) direct venting – AIR TERMINATION VERTICAL Follow instructions below when determining vent location to avoid possibility of severe personal injury, death or substantial property damage. WARNING ETERMINE LOCATION Locate the vent/air terminations using the following guidelines: The total length of piping for vent or air must not exceed the limits given in the section 9.1 of this manual. Prepare the vent termination and the air intake termination elbow (see Figure 9.21) by inserting bird screens.
Page 73 Multiple vent/air terminations 1. When terminating multiple boilers, terminate each vent/air connection as described in this manual (Figure 9.22). Terminate all exhaust vent pipes at the same height and all air intake pipes at the same height to avoid recirculation of flue products and the possibility of severe personal injury, death, or substantial property damage.
Page 74 Concentric Vertical Termination. Minimum clearance above snow level (18” for Canada) Maximum 24” above roof or snow level. Figure 9.24 Do not install U-Bend or elbow on concentric termination Figure 9.25 Do not operate the appliance with the rain cap removed from the concentric terminations or else recirculation of combustion products may occur.
Page 75: Common Venting
Concentric vent and combustion air vertical termination multiple boilers. Figure 9.26 Common venting The boilers from the VGH series have no internal flue gas check valve and need to be calculated for an external flue gas check valve system or a separated flue system. If separated flue systems cannot be applied, ask a flue gas supplier to calculate a common vent system utilizing external flue gas check valves..
Page 76: Electrical Installation
10 ELECTRICAL INSTALLATION General • For operation, the boiler needs a power supply of 120 VAC / 60Hz. • The boiler main supply connection is polarity sensitive. • The wiring for the connections can be entered at the bottom of the boiler through the wiring knockouts. •...
Page 77: Explanation Of The Low Voltage Connections Vgh-Ch Boilers
VGH-CH XPLANATION OF THE LOW VOLTAGE CONNECTIONS BOILERS OUTDOOR SENSOR If an outdoor temperature sensor is connected, the boiler will control the supply water temperature by using a calculated setting based on outdoor reset curve, which is related to the outdoor temperature. SYSTEM SENSOR If a low loss header is used, this sensor measures the flow temperature at the system side.
Page 78: Explanation Of The High Voltage Connections Vgh-Ch Boilers
VGH-CH XPLANATION OF THE HIGH VOLTAGE CONNECTIONS BOILERS 1-2-3-PE 3 WAY VALVE (TWV) This connection is internally connected to the 3-way valve in the appliance 4-5-PE SYSTEM PUMP / DHW CIRCULATOR / CH CIRCULATOR Connections for the power supply of a central heating system circulator P3, see paragraph 8.5.for detailed electrical specifications.
Page 79: Explanation Of The Low Voltage Connections Vgh-Co Boilers
VGH-CO XPLANATION OF THE LOW VOLTAGE CONNECTIONS BOILERS OUTDOOR SENSOR If an outdoor temperature sensor is connected, the boiler will control the supply water temperature by using a calculated setting based on outdoor reset curve, which is related to the outdoor temperature. SYSTEM SENSOR If a low loss header is used, this sensor measures the flow temperature at the system side.
Page 80: Explanation Of The High Voltage Connections Vgh-Co Boilers
VGH-CO XPLANATION OF THE HIGH VOLTAGE CONNECTIONS BOILERS 1-2-3-PE 3 WAY VALVE (TWV) This connection is internally connected to the 3-way valve in the appliance 4-5-PE SYSTEM PUMP Connections for the power supply of a central heating system circulator P3, see paragraph 8.5. for detailed electrical specifications.
Page 81: Ladder/Logic Diagram Vgh-Ch/Co Boilers
VGH-CH/CO BOILERS ADDER OGIC IAGRAM Figure 10.3 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 82: Electrical Schematic Vgh-Ch Boilers
VGH-CH LECTRICAL SCHEMATIC BOILERS Figure 10.4 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 83 Figure 10.5 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 84: Electrical Schematic Vgh-Co Boilers
VGH-CO LECTRICAL SCHEMATIC BOILERS Figure 10.6 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 85 Figure 10.7 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 86: Sensor Availability
Sensor availability VGH-CH ENSOR AVAILABILITY BOILERS The following table shows the sensor availability for all CH and DHW control modes. Sensors not mentioned in the table are optionally available for other functions CH Mode T_Supply T_Return T_DHW T_Outdoor 0-10 Volt Water Flow DHW RT Switch M = Mandatory, O = Optional, --- = Disabled.
Page 87: Programmable In- And Outputs
Programmable in- and outputs It is possible to re-program some in- and outputs to other functions. To do this use the list below and go to: Menu\settings\boiler settings\"1122" (installer password)\boiler parameters. Default Default Boiler parameter Name Description Terminal setting CH setting CO Prog.
Page 88: Using The Display
11 USING THE DISPLAY Display and buttons Each type of the VGH Boiler series is provided with a digital display. • PB-display – a pixel-based graphical user interface A PB-display will look like this: 100.0 °F 140.0 °F Figure 11.1 ON/OFF.
Page 89: Display Icons
ISPLAY ICONS The following table gives a short description of the icons that can be visible on the main screen during operation: Icon Description Boiler Status CH control state RT_Input Central Heating demand (Central Heating controller (Room thermostat open of state) closed) Domestic Hot Water demand...
Page 90: Control Panel Menu Structure
Control panel menu structure  Press menu button    Select ‘Central Heating (CH) and Select ‘CH setpoint’ and press Press ENTER or RIGHT to select and UP/ DOWN to change the value, press ENTER or RIGHT ENTER or RIGHT and ENTER or RIGHT to confirm.
Page 91: Set Actual Setpoint/Dhw Setpoint Directly Via The Status Overview
/DHW CTUAL SETPOINT SETPOINT DIRECTLY VIA THE TATUS OVERVIEW When CH is active, you can adjust the Actual setpoint directly on the bottom of the Status overview. When DHW is active, you can adjust the DHW setpoint directly on the bottom of the Status overview. This means that when CH is active, you cannot set the DHW setpoint directly via the Status overview.
Page 92: Protected Menu Items
ROTECTED MENU ITEMS Some menu items are protected and only accessible via a password*. The following password screen will appear: Figure 11.12 * Installers have to use the password 1122 to change parameters protected by a password. Changing protected/safety parameters should only be conducted by experienced, licensed installers and service technicians or a service agency or the gas supplier.
Page 93: Boiler History
Boiler history The boiler history found in the information menu displays several history counters that keep track of the boiler usage. The history cannot be erased and will continue for the entire burner controller life cycle. The following boiler history data are available: (Sub) Menu item Description Successful Ignitions...
Page 94: Service Reminder
The second line will show the Error Description. The bottom line will show the Time Stamp (date and time) when the error was detected (in the format as configured in the Date Time Settings menu), and also the selected error index from the total number of errors in the (filtered) error log.
Page 95: General
General The boiler controller is designed to function as a standalone control unit for intermittent operation on heating appliances with a premix (modulating) burner and a pneumatic air-gas system. Mains input 1 x 5AT, 120V 2 seconds Flame establishing period Safety time 5 seconds Ignition attempts...
Page 96: Appliance Selection
PPLIANCE SELECTION The control is designed to store specific parameter sets of different boiler models. By defining specific setting for different appliance models the same control can be used for a complete product range. Depending on which model the control is applied to, it will only be necessary to change a single parameter. When this parameter (138) is changed, the following settings are changed: •...
Page 97: Flame Recovery
LAME RECOVERY When the ionization current is too low, the system responds by increasing the minimal fan speed, in order to keep the flame present. This is done by increasing the minimal fan speed when the ionization current is too low. Whenever the ionization current is high enough, the minimal fan speed will be decreased again.
Page 98: Ch With An Outdoor Temperature Reset And Thermostat; Ch Mode 1
Adjustable Set Point Heating Parameters Specific Parameters Display menu # Level Default Value Range CH_Mode Installer Mode 0-5 CH Setpoint Installer 185 ºF (80 ºC) 68…..194 ºF Sets the required supply temperature (20…..90 ºC) CH_Post_Circulator_Time Installer 120 sec. 10…..900 sec Anti_Cycle_Period Installer 180 sec...
Page 99 Boost function The outdoor reset boost function increases the CH_Setpoint by a prescribed increment (Boost_Temperature_Incr) if a demand for heat continues beyond the pre-set time limit (Boost_Time_Delay). Boiler Parameters ▲ (25) Warm Weather Shutdn 72 °F (26) Boost Temp increment 32 °F (27) Boost Time Delay 20 min...
Page 100: Ch With Constant Circulation System Outdoor Reset; Ch Mode 2
; CH WITH CONSTANT CIRCULATION SYSTEM OUTDOOR RESET MODE This mode is available to both Heating Only (VGH-CH) and Combi (VGH-CO) boilers. When CH_Mode is set to 2, full weather compensator is chosen. For this mode an outdoor sensor has to be connected.
Page 101: Ch With Constant Circulation And Permanent Heat Demand; Ch Mode 3
; CH WITH CONSTANT CIRCULATION AND PERMANENT HEAT DEMAND MODE This mode is available to both Heating Only (VGH-CH) and Combi (VGH-CO) boilers. For this mode the CH_ Mode must be set to 3: no outdoor sensor is needed. The supply temperature is kept constantly at the setpoint temperature.
Page 102: Ch With Analog Input Control Of Power Output; Ch Mode 5
; CH WITH ANALOG INPUT CONTROL OF POWER OUTPUT MODE This mode is available to both Heating Only (VGH-CH) and Combi (VGH-CO) boilers. In this mode of operation, the boiler power (boiler input) is controlled by an analog input signal provided by a remote means such as a Building Management System or a system controller.
Page 103: Control Functions Domestic Hot Water
Control Functions Domestic Hot Water Depending on the type and required functions of the appliance and connected sensors and components, several operation modes for Domestic Hot Water (DHW) can be selected. The following modes are available for DHW and only available for Heating Only boilers (VGH-CH). •...
Page 104: Dhw Storage With Thermostat; Dhw Mode 2
DHW Priority Standard DHW demand has priority (PB: 43) over CH demand but the priority period is limited up to DHW_Max_Priority_Time (PB43). The priority timer starts when both CH and DHW demand are present. After the DHW_Max_Priority_Time is achieved, the control will switch from DHW to CH operation. CH has priority now for a maximum period of DHW_Max_Priority_Time.
Page 105: Instantaneous Water Heating With Plate Heat Exchanger; Dhw Mode 5
Relevant variables Specific Parameters Display Level (Default) Range menu # Value DHW_Mode PB 1 Installer 0, 1, 2,3, 4, 5, 6, 7, 8 104…185 ºF (40…85 ºC) DHW_Store_Setpoint PB 115 User 122ºF (50 ºC) Sets the supply temperature from the boiler to prepare DHW in the indirect tank DHW_Priority PB 42...
Page 106: Menu Structure Display
Menu structure display Menu structure Display: Access Description: level 1. Central Heating (CH) User Enter the Central Heating (CH) menu 2. Domestic Hot Water (DHW) User Enter the Domestic Hot Water (DHW) menu 3. Information User Enter the Information menu 4.
Page 107 3.2 Boiler status min. max. Default unit Access Description: level Flow Temperature °F (°C) User Actual supply flow temperature Flow 2 Temperature (Not used) °F (°C) User Actual supply 2 flow temperature Return Temperature DHW Temperature °F (°C) User Actual DHW temperature DCW Temperature °F (°C) User...
Page 108 4.1 General settings min. max. Default unit Access Description: level 4.1.1 Language User Enter the Language menu 4.1.2 Unit Type User Enter the Unit Type menu 4.1.3 Date & Time User Enter the Date & Time menu 4.1.4 Cascade Mode User Enter the Cascade Mode menu 4.1.5 Other Settings...
Page 109 4.2 Boiler settings min. max. Default unit Access Description: level 4.2.1 Boiler Parameters installer Enter the Boiler Parameters menu 4.2.2 Module Cascade installer Enter the Module Cascade Settings Settings menu 4.2.3 Boiler Cascade installer Enter the Boiler Cascade Settings Settings menu 5 System test min.
Page 110 Dis- 4.2.1 Boiler parameters min. max. Default unit Access Description: play level DHW Tank Hyst. Up °F Installer Set the DHW tank hysteresis (10) (°C) DHW Tank Supply Extra °F Installer Set the DHW tank supply (30) (15) (°C) setpoint offset DHW Priority Installer Set the DHW priority mode...
Page 111 Dis- 4.2.2 Module Cascade min. max. Default unit Access Description: play Settings level Burner Address Stand Installer Set the cascade burner alone address Permit Emergency Mode Yes/ Installer Enable/disable the cascade emergency mode Emergency Setpoint °F Installer Set the emergency mode (20) (90) (70)
Page 112 Parameters for cascade operation are found in the Module cascade settings menu, located in the Boiler settings menu. Parameters in the Boiler cascade settings menu must not be used. NOTICE Dis- 4.2.3 Boiler Cascade min. max. Default unit Access Description: play Settings level...
Page 113: Temperature Protection
12 TEMPERATURE PROTECTION The difference between Supply temperature and Return Temperature is continuously monitored. To large of a difference can indicate a defective pump or a clogged heat exchanger. To protect the boiler, the burner controller reduces the input when the temperature difference ΔT (Delta T) becomes too high: At maximum boiler input ΔT is limited to 63 °F (35 °C) - (Hx_Diff_DeltaT_Min ) In between 63 °F (35 °C) and 77 °F (43 °C) boiler input modulates between minimum and maximum.
Page 114: Lockout Codes
Lockout codes Lock Error Description Cause Solving code E2PROM_READ Internal software error wrongly programmed reset BCU or replace BCU _ERROR BCU or PB and or display unit IGNIT_ERROR Five unsuccessful ignition no gas, wrongly check gas supply and ad- attempts in a row adjusted gas valve just gas valve, reset BCU GV_RELAY_...
Page 115 Lock Error Description Cause Solving code FLUE_GAS_ Flue temperature there is no water in check if flue sensor is ERROR exceeded the maximum the heat exchanger working correctly if not so flue temperature or flue gas sensor is replace flue sensor. Check malfunctioning or waterflow if to low increase heat exchanger is...
Page 116: Blocking Codes
Blocking codes Block- Error Description Cause Solving code WD_ERROR_ Internal software error wrongly programmed reset BCU or replace BCU BCU or PB and or display unit WD_ERROR_ Internal software error wrongly programmed reset BCU or replace BCU BCU or PB and or display unit WD_ERROR_ Internal software error...
Page 117 Block- Error Description Cause Solving code FLUE_OPEN Flue sensor open malfunctioning flue check connection to BCU sensor or not or check resistance NTC connected sensor OUTDOOR_ OPEN Outdoor sensor open malfunctioning out- check connection to BCU door sensor or not or check resistance NTC connected or wrong sensor or change CH-...
Page 118: Warnings
Block- Error Description Cause Solving code LOWEXFLOW_P Flow is too low, not enough water flow check the circulator ROTECTION demand needs to be through heat operation. stopped with fan at exchanger check/open all valves that ignition speed*, but no might restrict water flow error needed to be through the unit.
Page 119: Cascading
14 CASCADING System setup For proper functioning of the system, certain settings have to be changed. See paragraph 14.2 NOTICE The boiler controller can control multiple boilers in a cascade setup. A system sensor input is available on the main board to measure the cascade system supply temperature. A circulator output is also available to run the system circulator, as well as an output for the DHW circulator.
Page 120: Setting The Boiler Address
Changes in parameters must only be carried out by a skilled commissioning/service installer, who has had specific training for setting up the VGH-boilers. The installer will be able to check whether the installation WARNING functions correctly after changing the parameters. Parameters for cascade operation are found in the Module cascade settings menu, located in the Boiler settings menu.
Page 121: E2Prom Address Selection Through E2Prom Setting
PROM ADDRESS SELECTION THROUGH E PROM SETTING This setting can be changed on the boiler control. Boiler address Boiler operation Function of sensor input terminal 3-4 0 (default Standalone burner No function boiler (managing) System sensor boiler (depending) No function boiler (depending) No function boiler (depending...
Page 122: Cascade - Dhw Priority
– DHW ASCADE PRIORITY The boiler cascade system has multiple options for priority and parallel DHW and heating. The following levels of priority are configurable (and possible): Priority level Description When both CH and DHW demand have to be served, the priority is given to the DHW demand for a given interval (indicated with parameter Minute_Switch_Priority).
Page 123: Next Depending To Start Selection
With parameter First_Depending_To_Start the current depending that is first to start in the sequence is selected. When the boilers are rotated the parameter First_Depending_To_Start is automatically updated to the next depending. When boiler rotation is disabled the parameter First_Depending_To_Start is reset to 0. When the First_Depending_To_Start is manually changed the control will clear all demand of the cascade control.
Page 124: Emergency Mode
MERGENCY MODE Managing boiler error When the managing boiler is in error mode, the depending boilers can go into the "Emergency_Mode", if enabled. In emergency mode the system setpoint is set to the temperature of the Emergency_Setpoint and all cascaded boilers start burning on this setpoint.
Page 125: System Test
15 SYSTEM TEST For testing the system at fixed power rates, a system test can be activated via the Installer menu. In the main menu of the display, select the option System Test. This option is password protected. Via the system test the boiler can be started without CH or DHW being present. The system test has priority. The following modes are available: System test mode Description...
Page 126: Commissioning The Boiler
16 COMMISSIONING THE BOILER First: flushing the boiler with water After installation of the boiler, before commissioning, the first step is to flush the boiler and the whole heating installation with fresh water to remove pollution, debris and other material that might cause a blockage. This must also be done with heating installations, where only the boiler has been replaced.
Page 127: Mounting The Condensate Trap
Mounting the Condensate Trap When mounting the bottom part of the condensate trap, before commissioning the boiler and/or after maintenance, it must ALWAYS be completely filled with water. When mounting the bottom part of the condensate trap, before commissioning the boiler and/or after maintenance, the condensate trap must ALWAYS be completely filled with water.
Page 128: Firing For The First Time
Firing for the first time After the commissioning of the boiler and completing the previously described required actions, the display screen will show the following: Figure 16.2 This screen is active during power up and will remain active until communication with the main Control has been established.
Page 129: Adjusting And Setting The Boiler
17 ADJUSTING AND SETTING THE BOILER Before carrying out any adjustments of the burner, carefully read this chapter entirely. The initial lighting of the appliance must be performed by a licensed Gas Technician. Failure to follow these instructions may result in property damage, serious injury or death. As soon as the appliance has been fully installed (with regard to hydraulics, filling and de- aeration of installation, gas, flue gas, air intake, wiring etc.) according to the preliminary WARNING...
Page 130: Setting Screws Gas Valve: Drawings
ETTING SCREWS GAS VALVE DRAWINGS Location of the setting screws: Gas pressure nipple [3] Low Fire: screw [1] High Fire: screw [2] Figure 17.1 Low Fire: gas valve adjustment screw: Torx T40. NOTE: Remove the cover screw to get access to the low fire adjustement screw. High Fire: adjustment screw: use hex key 4 mm (5/32 Allen wrench) E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 131: Co 2 / O 2 Adjustment Procedures
Adjustment procedures The adjustment of the low fire screw is much more sensative than the high fire screw. Only make small adjustments 1/8th of a turn at a time and then wait for the boiler to stabilize and give the combustion analyzer enough time at least 20 seconds to draw in a stable sample.
Page 132: Conversion From Natural Gas To Propane
WARNING Use only parts/conversion kits obtained from your Slant/Fin distributor and intended to be used with this particular boiler. Every conversion kit is provided with instructions how to assemble the kit to the boiler. In order to convert the boiler from natural gas to propane the gasvalve/venturi must be completely exchanged for a propane compatible gasvalve/venturi.
Page 133 4. Set parameter 138 Parameter 138 has to be changed in the software of the boiler according to the following table: NB: fan speed is given to verify. Fan speed high fire Parameter 138 Boiler model for propane (LP) for propane (LP) VGH-80-CH 6850 VGH-100-CH...
Page 134: Start Up Checklist
New boiler or replacement Boiler Registration Cascade installation (Y/N) (YES/NO) or send a copy to address Number of boilers Slant/Fin Corp. 100 Forest Drive Type of boilers in cascade Greenvale, NY 11548 Venting information Direct vent or using combustion air from indoor?
Page 135 Water circulation & temperature regulation (for DHW) Piping diameter Total length of straight pipe between boiler & tank Number of elbows Number of tees Temperature rise between inlet and outlet after 5 min. cold-start operating max. power °C / °F Water temperature setpoint Test of Water Flow Switch (DHW)? (Yes/NO)
Page 136: Inspection, Maintenance And Service
18 INSPECTION, MAINTENANCE AND SERVICE General For a good, safe and long-lasting operation of the boiler and to maintain warranty it is mandatory to carry out inspection, maintenance and service on the boiler at least once a year. Maintenance and inspection of the boiler must be carried out in the following situations: •...
Page 137 Potential Carcinogen - Use of Refractory Ceramic Fibers in high temperature applications (above 1805 °F) can result in the formation of Crystalline Silica (cristobalite), a respirable silica dust. Repeated airborne exposure to crystalline silica dust may result in chronic lung infections, acute respiratory illness, or death. Crystalline silica is listed as a (potential) occupational carcinogen by the following regulatory organizations: International Agency for Research on Cancer (IARC),...
Page 138: Inspection, Maintenance And Service Tasks
Inspection, maintenance and service tasks Inspection, maintenance and service including the replacement of boiler parts must only be carried out by a licensed professional, service agency or the gas supplier. Apart from the maintenance proceedings it is required to maintain a service log for each boiler that includes all of the following information: •...
Page 139 After this, take out the complete burner unit by moving it forward out of the boiler housing. Watch out not to damage the burner plate insulation during this operation. CAUTION While removing the complete burner unplug both of the electrical and controlling cables of the fan. Next dismantle the venturi on the suction side of the fan and check the blade wheel of the fan.
Page 140 • Cleaning the interior of the heat exchanger. CAUTION Use nylon brush only. Do NOT use metallic brush. Vacuum the remaining residues Clean with a nylon brush Vacuum the combustion residues Wait about 3 to 5 minutes This step is necessary only in case of serious buildup of combustion Spray white vinegar or Rinse with water...
Page 141 • When the fan blades are polluted and dirty, carefully clean the blades with a soft brush. Notice: do not use too much force on the blades or else the fan might be out of balance and run irregularly, causing noise and fan failures. Also check the fan for any water damage.
Page 142: Replacing Heatexchanger Parts
Replacing Heatexchanger parts. Warning Crystalline Silica – Read instructions in § 18.2 carefully WARNING EPLACEMENT OF THE BURNER DOOR GASKET If any part of a gasket has a discolored, changed texture, has been hardened, the rubber has cured and/or has damages, these gaskets must be replaced.
Page 143: Replacement Of The Burner Door Insulation
• Engage the high temp braided rope and place it in contact with the glue and press the braids. • Reinstall electrodes Figure 18.10 EPLACEMENT OF THE BURNER DOOR INSULATION The insulation burner door is fitted to the burner diameter and is maintained by 2 glue silicone dots. If the insulation is damaged and needs to be changed, it has to be replaced by a new insulation using the method described below.
Page 144 2 dots of glue silicone «Loctite 5366 ou Ottoseal S17» Figure 18.15 Figure 18.14 3. Check the condition of the electrodes, if necessary replace them. Reassembly the electrodes equipping them with new gaskets and respecting the location of each electrode as well the tightening torque of the 4 screws of 2.5Nm (22.1 inch Lbs).
Page 145: Replacement Of The Rear Wall Insulation Disk
EPLACEMENT OF THE EAR WALL INSULATION DISK If the insulation disk has been degraded or damaged, it has to be replaced. • Ensure that the heat exchanger has cooled down; wait a few hours after burning. In this way the protective film is no longer sticking to the rear side of this insulation disk.
Page 146: Cleaning The Brazed Plate Heat Exchanger
Cleaning the Brazed Plate Heat exchanger Cleaning the Brazed Plate Heat exchanger (Every 2 year maintenance or as needed based on water quality) The brazed plate heat exchanger should be cleaned at the service interval every 2 years. Failure to flush the brazed plate heat exchanger will cause damage to it.
Page 147: Maintenance Checklist
Maintenance Checklist Allowing the boiler to operate with a dirty combustion chamber will be detrimental to its operation. Failure to clean the heat exchanger as required by the manual and dictated by the operating location could result in boiler failure, property damage, personal injury, or death. WARNING Such product failures ARE NOT covered under warranty Periodic maintenance must be performed once a year by a qualified service technician to guarantee that all the...
Page 148: User Instructions
19 USER INSTRUCTIONS After installing and commissioning of the boiler, the installer is obliged to do the following: • Demonstrate the operation of the entire heating system to the end-user; • Make the user familiar with all safety precautions of the boiler and the installation •...
Page 149 System Example 3 CH mode 1 Low Voltage Connections Name Wire terminal Room thermostat 12-13 Outdoor temperature sensor High Voltage Connections Boiler circulator 6-7-PE System heating circulator 4-5-PE Low Loss Header Figure 20.3 System Example 4 CH mode 1 DHW mode 1/2 Low Voltage Connections Name Wire terminal...
Page 150 System example 5 DHW mode 5 High Voltage Connections Boiler circulator 6-7-PE Plate heat exchanger (combi boiler only). Figure 20.5 System example 6 Figure 20.6 CH mode 1 DHW mode 5 Low Voltage Connections Name Wire terminal Room thermostat 12-13 Outdoor temperature sensor High Voltage Connections Boiler circulator...
Page 151 System example 7 Figure 20.7 CH mode 1 DHW mode 5 Low Voltage Connections Name Wire terminal Room thermostat 12-13 Flow temperature sensor Outdoor temperature sensor High Voltage Connections Boiler circulator 6-7-PE System circulator 4-5-PE Diverter valve (3-way-valve) 1-2-3-PE Low Loss Header Check the following parameters: Boiler parameter Name...
Page 152: Spare Parts Vgh-Xx-Ch
21 SPARE PARTS VGH-xx-CH Wiring harness Figure 21.1 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 153 Remarks: Remarks: All parts are supplied with glued/bonded All parts are supllied with glued/bonded parts, such as grounding lips, stips, parts, such as grounding lips, stips, isolation, stickers. Also bolts and nuts are isolation, stickers. Also bolts and nuts supplied if necessary. Figure 21.2 are supplied if necessary.
Page 154: Spare Part List Vgh-Xx-Ch
Spare part list VGH-xx-CH VGH-xx-CH Type Description Partnumber VGH Residential Yearly Maintenance Service Kit 81 7285 000 Set. Electronics holder 81 7073 000 Supply Pipe section one VGH-80CH/100CH 81 7187 000 Supply Pipe section one VGH-120CH/150CO 81 7188 000 Supply Pipe section one VGH-150CH/180CH/200CO 81 7189 000 Connection pipe between hydroblock and supply 81 7190 000...
Page 155 VGH-xx-CH Type Description Partnumber Dustcover ON/OFF switch 81 7071 000 Power Supply Switch 81 7072 000 Spring plunger 8mm 81 7070 000 EPDM sealing for EBM 957 81 7185 000 Mounting plate burner control 81 7224 000 Bracket air intake damper 81 7173 000 Combustion Blower NRG118/115W (120VAC) 81 7241 000...
Page 156 VGH-xx-CH Type Description Partnumber Hose pressure switch 81 7209 000 Hose coupling 81 7208 000 PVC hose Ø27x19 mm with inlays 81 7240 000 Hose clamp 25-28 mm 81 7207 000 Hose spring clamps Ø25.40 mm 81 7297 000 Hydroblok plug 81 7214 000 Hydroblock CH (heating) 81 7210 000...
Page 157: 22 Spare Parts Vgh-Co
22 SPARE PARTS VGH-CO Wiring harness Figure 22.1 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 158 Remarks: All parts are supplied with glued/bonded parts, such as grounding lips, stips, isolation, stickers. Also bolts and nuts are supplied if necessary. Figure 22.2 E93.1901EN032 Installation and Service Manual SlantFin VGH-CH / CO...
Page 159: Spare Part List Vgh-Xx-Co
Spare part list VGH-xx-CO VGH-xx-CO Type Pos. Description Partnumber VGH Residential Yearly Maintenance Service Kit 81 7285 000 Set Electronics holder 81 7073 000 Supply Pipe section one VGH-80CH/90CO/100CH 81 7187 000 Supply Pipe section one VGH-120CH/150CO 81 7188 000 Supply Pipe section one VGH-150CH/180CH/200CO 81 7189 000 Connection pipe between hydroblock and supply...
Page 160 VGH-xx-CO Type Pos. Description Partnumber Power Supply Switch 81 7072 000 Spring plunger 8 mm 81 7070 000 EPDM sealing for EBM 957 81 7185 000 Mounting plate burner control 81 7224 000 Bracket air intake damper 81 7173 000 Combustion Blower NRG118/115W (120VAC) 81 7241 000 Combustion Blower RG148/300W (120VAC)
Page 161 VGH-xx-CO Type Pos. Description Partnumber Hose spring clamps Ø 25.40 mm 81 7297 000 Hydroblok plug 81 7214 000 Hydroblock Plug 81 7168 000 3 way valve 81 7164 000 Pressure sensor Eltek 81 7238 000 Automatic air vent in hydroblock 81 7166 000 Circulator Motor UPS/R 81 7223 000...
Page 164 ©Slant/Fin Corp. 2019 • 1019• PUBLICATION VGHR-40 SLANT/FIN CORPORATION, Greenvale, N.Y. 11548 • Phone: (516) 484-2600 FAX: (516) 484-5921 • Canada: Slant/Fin , Mississauga, Ontario LTD/LTEE 400 Ambassador Drive Mississauga, Ontario L5T 2J3Phone: (905) 677-8400 www.slantfin.com...

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Slant/Fin VHG-100-CH Installation And Service Manual

Safety Guidelines

Introduction

Technical Data Vgh Residential Boilers

Boiler Dimensions

Accessories and Unpacking

Installation Location of the Vgh

Connections

Circulator Characteristics

Flue Gas and Air Supply System

Electrical Installation

Using the Display

Temperature Protection

Error Information

Cascading

System Test

Commissioning the Boiler

Adjusting and Setting the Boiler

Inspection, Maintenance and Service

User Instructions

Installation Examples

SPARE PARTS VGH-XX-CH

22 Spare Parts Vgh-Co

Quick Links

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Summary of Contents for Slant/Fin VHG-100-CH

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Table of Contents