Mitsubishi Electric QAHV-N136TAU-HPB Data Book
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Mitsubishi Electric QAHV-N136TAU-HPB Data Book

Mitsubishi Electric QAHV-N136TAU-HPB Data Book

Hot water heat pump
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HOT WATER HEAT PUMP
QAHV-N136TAU-HPB   (-BS)
MODEL
QAHV-N136YAU-HPB   (-BS)
Table of Contents
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Summary of Contents for Mitsubishi Electric QAHV-N136TAU-HPB

  • Page 1 HOT WATER HEAT PUMP QAHV-N136TAU-HPB   (-BS) MODEL QAHV-N136YAU-HPB   (-BS)

  • Page 2: Table Of Contents

    CONTENTS HOT WATER HEAT PUMP 1. Product Specifications ..........................2 1-1. Specifications........................... 2 1-2. External Dimensions ........................4 1-3. Center of Gravity..........................6 1-4. Electrical Wiring Diagrams....................... 7 1-5. Optional parts ..........................11 2. Product Data ............................. 16 2-1. Capacity tables ..........................16 2-2.

  • Page 3: Product Specifications

    1. Product Specifications 1-1. Specifications I. 1. Product Sp ecifications Model QAHV-N136TAU-HPB (-BS) Power Source 3-phase 3-wire 208-230 V 60 Hz Capacity *1 BTU/h 136,480 Power input 9.73 Current input 30.0-27.2 kW/kW 4.11 Capacity *2 BTU/h 136,480 Power input 10.44 Current input 32.2–29.1...
  • Page 4 (MPa) 72.5 (0.5) Heat exchanger Water-side Copper tube coil Air-side Plate fins and copper tubes Compressor Type Inverter scroll hermetic compressor Manufacturer MITSUBISHI ELECTRIC CORPORATION Starting method Inverter Motor output 11.0 Case heater 0.045 Lubricant Air flow rate 7,768 /min...

  • Page 5: External Dimensions

    1. Product Specifications 1-2. External Dimensions QAHV-N136TAU-HPB (-BS) Unit: mm (in.) MEES22K030...
  • Page 6 1. Product Specifications QAHV-N136YAU-HPB (-BS) Unit: mm (in.) MEES22K030...

  • Page 7: Center Of Gravity

    1. Product Specifications 1-3. Center of Gravity QAHV-N136TAU-HPB (-BS) Unit: mm (in.) 504 (19-7/8) 314 (12-3/8) 1060 (41-3/4) 719 (28-5/16) (2-15/16) (3/4) 755 (29-3/4) 1208 (47-9/16) QAHV-N136YAU-HPB (-BS) Unit: mm (in.) 504 (19-7/8) 307 (12-1/8) 719 (28-5/16) 1060 (41-3/4) (2-15/16)

  • Page 8: Electrical Wiring Diagrams

    1. Product Specifications 1-4. Electrical Wiring Diagrams QAHV-N136TAU-HPB (-BS) 3 2 1 3 2 1 MEES22K030...
  • Page 9 1. Product Specifications MEES22K030...
  • Page 10 1. Product Specifications QAHV-N136YAU-HPB (-BS) 3 2 1 3 2 1 6 5 4 3 2 1 3 2 1 MEES22K030...
  • Page 11 1. Product Specifications QAHV-N136YAU-HPB (-BS) MEES22K030...

  • Page 12: Optional Parts

    1. Product Specifications 1-5. Optional parts 1-5-1. Remote controller PAR-W31MAA Refer to 6-1. PAR-W31MAA specifications. MEES22K030...
  • Page 13 1. Product Specifications 1-5-2. Secondary circuit kit Q-1SCK This kit contains External water temperature sensor TW-TH16-E and Flow sensor kit for use on the secondary side of hot water heat pump (QAHV) units. Make sure the following parts are included. External water temperature sensor TW-TH16-E * The size and length noted are approximate.
  • Page 14 1. Product Specifications External water temperature sensor TW-TH16 1. Parts that are required to install an external water temperature sensor Wiring specifications A) External water temperature sensor Size 2-core cable (Min.1.25 mm B) Wiring to connect the sensor and the unit* C) Wiring terminals to connect the wiring to the sensor and the terminal block Type CVVS or CPEVS...
  • Page 15 Install the flow sensor on the pipe by following steps (1) through (3) below. Install the flow sensor between the secondary-side pump and the heat exchanger. Refer to the Installation/Operation Manual of QAHV-N136TAU-HPB for details. (1) Install an O-ring on the flow sensor and coupler 2 (OUT-side).
  • Page 16 1. Product Specifications 3. Flow sensor wiring connection Connect the wiring by following steps (1) through (4) below. (1) Open the panel. Using a screwdriver, remove the SERVICE PANEL and the CONTROL BOX (SUB) cover. CONTROL BOX (SUB) SERVICE PANEL (2) Thread the wiring into the unit.

  • Page 17: Product Data

    When the power supply is imbalanced or under certain power supply conditions, the restriction control may be activated, preventing the unit from achieving the rated performance level. 2-1-1. Correction by temperature Outlet water temperature 130°F (54°C) Energy saving operation 1 mode QAHV-N136TAU-HPB (-BS)/QAHV-N136YAU-HPB (-BS) 58.6 200,000 52.8 180,000 46.9...
  • Page 18 2. Product Data Outlet water temperature 150°F (66°C) Energy saving operation 1 mode 58.6 200,000 52.8 180,000 46.9 160,000 41.0 140,000 35.2 120,000 41°F (5°C) 29.3 100,000 45°F (7°C) 55°F (13°C) Inlet water temperature 23.4 80,000 75°F (24°C) 17.6 60,000 11.7 40,000 20,000...
  • Page 19 2. Product Data Outlet water temperature 170°F (77°C) Energy saving operation 1 mode 58.6 200,000 52.8 180,000 46.9 160,000 41.0 140,000 45°F (7°C) 41°F (5°C) 35.2 120,000 55°F (13°C) 29.3 100,000 75°F (24°C) 23.4 80,000 17.6 60,000 Inlet water temperature 11.7 40,000 20,000...
  • Page 20 2. Product Data Outlet water temperature 130°F (54°C) Max capacity operation mode 58.6 200,000 Inlet water temperature 52.8 180,000 41°F (5°C) 45°F (7°C) 55°F (13°C) 46.9 160,000 41.0 140,000 35.2 120,000 29.3 100,000 23.4 80,000 17.6 60,000 11.7 40,000 20,000 Intake air temperature (°F D.B.) Intake air temperature (°C D.B.) 23.4...
  • Page 21 2. Product Data Outlet water temperature 150°F (66°C) Max capacity operation mode 58.6 200,000 41°F (5°C) 45°F (7°C) 55°F (13°C) 52.8 180,000 75°F (24°C) 46.9 160,000 Inlet water temperature 41.0 140,000 35.2 120,000 29.3 100,000 23.4 80,000 17.6 60,000 11.7 40,000 20,000 Intake air temperature (°F D.B.)
  • Page 22 2. Product Data Outlet water temperature 170°F (77°C) Max capacity operation mode 58.6 200,000 Inlet water temperature 52.8 180,000 41°F (5°C) 45°F (7°C) 55°F (13°C) 46.9 160,000 75°F (24°C) 41.0 140,000 35.2 120,000 29.3 100,000 23.4 80,000 17.6 60,000 11.7 40,000 20,000 Intake air temperature (°F D.B.)
  • Page 23 2. Product Data Outlet water temperature 130°F (54°C) Energy saving operation 2 mode 58.6 200,000 Inlet water temperature 52.8 180,000 41°F (5°C) 45°F (7°C) 46.9 160,000 55°F (13°C) 41.0 140,000 75°F (24°C) 35.2 120,000 29.3 100,000 23.4 80,000 17.6 60,000 11.7 40,000 20,000...
  • Page 24 2. Product Data Outlet water temperature 150°F (66°C) Energy saving operation 2 mode 58.6 200,000 Inlet water temperature 52.8 180,000 41°F (5°C) 45°F (7°C) 46.9 160,000 55°F (13°C) 41.0 140,000 75°F (24°C) 35.2 120,000 29.3 100,000 23.4 80,000 17.6 60,000 11.7 40,000 20,000...
  • Page 25 2. Product Data Outlet water temperature 170°F (77°C) Energy saving operation 2 mode 58.6 200,000 52.8 180,000 Inlet water temperature 41°F (5°C) 46.9 160,000 45°F (7°C) 55°F (13°C) 41.0 140,000 75°F (24°C) 35.2 120,000 29.3 100,000 23.4 80,000 17.6 60,000 11.7 40,000 20,000...
  • Page 26 2. Product Data 2-1-2. Correction by relative humidity 1.05 RH (%) 1.00 0.95 0.90 0.85 0.80 -15.0 -5.0 15.0 25.0 35.0 45.0 55.0 65.0 75.0 85.0 95.0 105.0 Outside air temperature (°F D.B.) Outside air temperature (°C D.B.) MEES22K030...

  • Page 27: Sound Pressure Levels

    2. Product Data 2-2. Sound pressure levels Measurement condition QAHV-N136TAU-HPB (-BS) QAHV-N136YAU-HPB (-BS) 1m (3-1/4ft) Measurement location 1.5m (4-7/8ft) Sound Pressure Level: 56 dB Operation mode: Energy saving operation 1 mode Outdoor temperature: 80.6°F (27°C) Outlet water temperature: 120°F (49°C) ...

  • Page 28: Vibration Levels

    2. Product Data 2-3. Vibration levels Measurement location Concrete 10cm (3-15/16 in.) 20cm (7-7/8 in.) Model Vibration Levels [dB] QAHV-N136TAU-HPB (-BS) 47 or less QAHV-N136YAU-HPB (-BS) MEES22K030...

  • Page 29: Installation

    3. Installation 3-1. Selecting the Installation Site 3. In stallation 3-1-1. Installation Conditions Select the installation site in consultation with the client. Select a site to install the outdoor unit that meets the following conditions: This unit is for outdoor installation only. The unit will not be subject to heat from other heat sources.
  • Page 30 3. Installation 3-1-2. Installation Space Requirements Provide sufficient space around the unit for effective operation, efficient air movement, and ease of access for maintenance. 1. Single unit installation (1) When all walls are within their height limits*. [Unit: mm (in.)] ≤...
  • Page 31 3. Installation 2. Multiple unit installation When installing multiple units, make sure to take into consideration factors such as providing enough space for people to pass through, ample space between blocks of units, and sufficient space for airflow. (The areas marked with in the figures below must be left open.) In the same way as with the single unit installation, add the dimension that exceeds the height limit (shown as "h1"...
  • Page 32 3. Installation 3. Combination of face-to-face and side-by-side installations When there are walls in the front and rear of When there are two walls in an L-shape the block of units [Unit: mm (in.)] Unit height (19-11/16) (19-11/16) h2’ 500(19-11/16) L2’...

  • Page 33: Unit Installation

    3. Installation 3-2. Unit Installation Units should be installed only by personnel certified by Mitsubishi Electric. Securely fix the unit with bolts to keep the unit from falling down during earthquakes or due to strong winds. Install the unit on a foundation made of concrete or iron.

  • Page 34: System Design

    4. System Design 4-1. Water Pipe Installation 4. System Design 4-1-1. Schematic Piping Diagram and Piping System Components indicates the direction of the water flow. Heat pump unit To storage tank From storage tank Water piping diagram Union joints/flange joints Required to allow for a replacement of equipment.
  • Page 35 4. System Design Heater installation example Use an insulation material that Heater can withstand the temperature of 212°F (100°C) and higher. Piping Check outside temperature + 25°C (45°F) is ensured. Recommended material: Glass wool, rock wool Heater Tape Piping 250 mm Heat insulator (9-7/8 in.) Pipe size and insulation thickness...
  • Page 36 4. System Design 4-1-2. Notes on pipe Corrosion Water treatment and water quality control Poor-quality circulating water can cause the water-side heat exchanger to scale up or corrode, reducing heat exchange performance. Properly control the quality of the circulating water. Removing foreign objects and impurities in the pipes During installation, keep foreign objects, such as welding and sealant fragments and rust, out of the pipes.
  • Page 37 4. System Design 4-1-3. Pipe gradient and air venting valve (Outlet hot water pipe) During the hot water storage operation, the air dissolved in the water is discharged in the form of bubbling from the outlet hot water pipe to quickly raise low-temperature water to the required temperature. When the air accumulates in the pipe, the resistance of the water circuit will increase and the flow rate will extremely decrease.

  • Page 38: Qahv Secondary Side Control

    4. System Design 4-2. QAHV Secondary side control 4-2-1. General description and purpose of secondary side control Secondary side control is a control method to raise the hot water temperature in the tank by using another heat exchanger added between the tank and the existing heat exchanger. By incorporating the secondary side control to the QAHV, the need to assemble a pump control on-site is eliminated, and the system construction in cases where water exceeding the QAHV water quality standard is used is now easier.
  • Page 39 4. System Design 4-2-2. Schematic Piping Diagram and Piping System Components Secondary side control system [1] Unit heating circuit [2] Secondary side circuit [3] Hot water supply circuit Temperature sensor Flow sensor (1) Notes on configuring and selecting components 1) Points to note for secondary side water piping [1] Details on components in the unit heating circuit * For details, refer to page 33.
  • Page 40 4. System Design 4-2-3. Selection criteria for heat exchanger Step 1 Determination of prerequisites for selection 1. Heat exchanger capacity 40000 W (136000 BTU/h) 2. Estimation of outlet hot water and inlet water temperatures As a guide, select a heat exchanger of which the temperature difference between the high temperature section and the low temperature section will be 5°C (9°F) or below.
  • Page 41 4. System Design Step 4 Calculation of the shearing stress Calculate the shearing stress using the following method. Values required for calculation  Relationship between flow rate and pressure loss of corresponding heat exchanger (Obtain the data from the heat exchanger manufacturer.) Calculation method Calculate the shearing stress using the following formula.
  • Page 42 4. System Design 4-2-4. Configuration method and selection criteria of flow rate adjustment device In this system, a flow rate adjustment device is installed in the secondary side circuit to perform secondary side flow rate adjustment control by outputting 0 to 10 V from the unit. * 10-V power supply is not supplied.
  • Page 43 4. System Design 2. System using a two-way valve Overview of system ON/OFF signal This system has a pump provided at the outlet of the tank and a two-way valve provided downstream of 0 to 10 V output the pump, and adjusts the flow rate by controlling the opening and closing of the two-way valve.
  • Page 44 4. System Design 4-2-5. When connecting multiple units To connect multiple units, configure one secondary side circuit system for each unit as shown in the figure below. (Install a heat exchanger, flow sensor, and thermistor for each unit.) * The system shown on the right cannot be configured when Secondary circuit kit Q-1SCK is used. When not using Secondary circuit kit Q-1SCK, the system shown on the right is possible.

  • Page 45: Wiring Design

    5. Wiring Design 5-1. System Configurations 5. Wiring Design 1. Types of control cables Size 0.3 - 1.25 mm² (AWG 22 - 16) (Max. 200 m (656 ft) total)*2 Remote controller cable Recommended cable types Size Min. 1.25 mm² (AWG 16) (Max. 120 m (393 ft) total) M-NET cable between units *1 Recommended cable types Shielded cable CVVS, CPEVS or MVVS...

  • Page 46: Electrical Wiring Installation

    5. Wiring Design 5-2. Electrical Wiring Installation 5-2-1. Main Power Supply Wiring and Switch Capacity Schematic Drawing of Wiring (Example) QAHV-N136TAU-HPB Switch (with current breaking capability) Current leakage breaker Hot water heat pump 3~208–230 V ...
  • Page 47 5. Wiring Design 5-2-2. Cable Connections 1. Schematic Diagram of a Unit and Terminal Block Arrangement To remove the front panel of the control box, unscrew the four screws and pull the panel forward and then down. Control terminal block Power supply terminal block Cable strap...
  • Page 48 5. Wiring Design Note: • Make sure the cables are not coming out of the rubber bushing cut. Wiring Top view Cables are coming out of the rubber bushing. Wiring Rubber bushing (oval part) Rubber bushing Wiring (oval part) Rubber bushing Cross-sectional view Top view •...

  • Page 49: Controller

    6. Controller 6-1. PAR-W31MAA specifications 6. Controller Item Description Operations Display ON/OFF Runs and stops the operation of a group of units Switches between Mode 1/Mode 2/Mode 3 Operation mode switching * Available operation modes vary depending on the unit to be connected. * Switching limit setting can be made via a remote controller.
  • Page 50 - Doing so may cause the unit or pipes to burst, or result in explosion or fire during use, repair, or at the time of disposal of the unit. - It may also be in violation of applicable laws. - MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant.

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