These direct ignition combination gas controls are used
in gas-fired appliances with capacities up to 300 feet 3 /hour
at 1 inch wc pressure drop [8.5 meters 3 /hour at 0.25 kPa]
on natural gas. They include a manual valve, two automatic
operators, and a pressure regulator. See Table 1 for tem-
perature ranges and regulator types.
VR8305 set up for natural gas includes a 393691 LP
Conversion Kit. The kit contains a cap screw, a pressure
regulator adjustment screw, a tapered spring and a conver-
sion label.
CAPACITY:
Size
(Inlet x Outlet)
1/2 x 1/2
1/2 x 3/4
3/4 x 3/4
a
Capacity based on 1000 Btu/feet
specific gravity natural gas at 0.25 kPa pressure drop].
Use conversion factors in Table 3 to convert capacities for
other gasses.
TABLE 1—TEMPERATURE RANGES AND
REGULATOR TYPES.
Ambient
Model
Temperature
Number
Range
VR8305H
0° F to 175° F
[-18° C to +79° C]
VR8305K
-40° F to 175° F
[-40° C to +79° C]
VR8305M
-40° F to 175° F
[-40° C to +79° C]
VR8305P
-40° F to 175° F
[-40° C to +79° C]
APPROVALS:
American Gas Association design certificate:
UP-70-69A.
Canadian Gas Association design certificate:
UP-70-69A.
Australian Gas Association design certificate:
Applied for.
Delta C: P-70-42A19
Combination Gas Control
Application
Capacity (at 1 inch
a
wc pressure drop
)
3
240 feet
/hour
3
[6.8 meter
/hour]
3
270 feet
/hour
3
[7.6 meter
/hour]
3
300 feet
/hour
3
[8.5 meter
/hour]
3
, 0.64 specific gravity natural gas at 1 inch wc pressure drop [37.3 MJ/meter
Regulator
Type
Slow-opening
Slow-opening
Standard-opening
Step-opening
G.G. • Rev. 10-91 • © Honeywell Inc. 1991 • Form Number 69-0626—2
Direct Ignition
BODY PATTERN: Straight-through body pattern.
INLET X OUTLET SIZES AVAILABLE: 1/2 x 1/2 inch,
1/2 x 3/4 inch, and 3/4 x 3/4 inch (factory-installed inlet
flange).
ADAPTERS: Adapters available for 1/2 and 3/4 inch
straight and angle connections. Refer to Table 2.
ELECTRICAL RATINGS:
VOLTAGE AND FREQUENCY: 24 Vac, 60 Hz.
THERMOSTAT HEAT ANTICIPATOR SETTING:
0.7A.
CURRENT DRAW: 0.70A.
Minimum
Regulated Capacity
3
30 feet
/hour
3
[0.8 meter
/hour]
3
30 feet
/hour
3
[0.8 meter
/hour]
3
30 feet
/hour
3
0.8 meter
/hour]
TABLE 2—FLANGE PART NUMBERS.
Inlet/
Outlet
Flange
Pipe Size
Type
1/2 inch NPT
Straight
Elbow
3/4 inch NPT
Straight
Elbow
NOTE: Flange Kits include one flange with attached O-
ring and four mounting screws.
TABLE 3—GAS CAPACITY
CONVERSION FACTORS.
Gas
Manufactured
Mixed
Propane
Honeywell
VR8305
Maximum
Regulated Capacity
3
340 feet
/hour
3
[9.6 meter
/hour]
3
370 feet
/hour
3
[10.5 meter
/hour]
3
415 feet
/hour
3
[11.8 meter
/hour]
Part Number
Without
Hex
Wrench
393690-6
393690-16
393690-3
393690-13
393690-4
393690-14
393690-5
393690-15
Specific
Multiply Listed
Gravity
Capacity By
0.60
0.516
0.70
0.765
1.53
1.62
3
, 0.64
With
Hex
Wrench