resideo VR8405 Installation Instructions Manual

VR8405 High Capacity Direct Ignition
Combination Gas Control
APPLICATION
This high capacity direct ignition combination gas
control is used in gas-fired appliances with capacities
3
up to 500 feet /hour at 1 inch wc pressure drop [14.2
3
meters /hour at 0.25 kPa] on natural gas. This entire
gas control consists of two valves assembled in parallel
on a die-cast manifold to provide high capacity. Each
valve includes a manual valve and two automatic
operators. A nonremovable electrical harness connects
both valves. Do not alter or remove this harness. Two
pigtail leads (with 1/4-inch quick connects) provide for
field connection. Gas controls are available for natural
Size (Inlet x Outlet) (in.)
3/4 x 3/4
3/4 x 1
1 x 1
a
Capacity based on 1000 Btu/feet
0.64 specific gravity natural gas at 0.25 kPa pressure drop].
Use conversion factors in Table 2 to convert capacities
for other gases.
Table 2. Gas Capacity Conversion Factors.
Gas Specific Gravity
Manufactured 0.60
Mixed 0.70
Propane 1.53
Electrical Ratings:
Voltage and Frequency: 24 Vac, 60 Hz. (50/60 Hz models
available on request.)
Current Draw: 1.4A.
Thermostat Heat Anticipator Setting: 1.4A.
Temperature Rating:
VR8405H: -0° F to 175° F [-18° C to +79° C].
VR8405M,P: -40° F to +175° F [-40° C to +79° C].
Capacity (at 1 inch wc
a
pressure drop )
3
400 feet /hour
3
[11.3 meter /hour]
3
450 feet /hour
[12.7 meter3/hour]
3
500 feet /hour
3
[14.1 meter /hour]
3
, 0.64 specific gravity natural gas at 1 inch wc pressure drop [37.3 MJ/meter
Multiply Listed
Capacity By
0.516
0.765
1.62
gas and LP; they are not convertible from one gas to
another. Bushings are available to reduce the inlet and
outlet of the entire gas control.
Models are available with slow-opening (VR8405H),
standard (VR8405M) and step-opening (VR8405P)
regulators.
Valves have fixed pressure regulation and are not
adjustable. It is recommended that an appliance shutoff
valve be installed upstream of the VR8405.
BODY PATTERN: Straight-through body pattern.
INLET/OUTLET SIZES: 3/4 x 3/4 inch, 3/4 x 1 inch,
1 x 1 inch.
Table 1. Capacity.
Minimum
Regulated Capacity
200 feet3/hour
3
[5.7 meter /hour]
3
200 feet /hour
3
[5.7 meter /hour]
3
200 feet /hour
3
[5.7 meter /hour]
Accessory:
Part no. 390427H 3/4 in. x 1 in. Bushing.
Approvals:
American Gas Association design certificate: L2025009.
Canadian Gas Association design certificate: L2025009.
Underwriters Laboratories Inc.: MH8191
INSTALLATION
When Installing This Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a haz-
ardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable
for your application.
3. The installer must be a trained, experienced ser-
vice technician.
4. After installation is complete, use these instruc-
tions to check out product operation.
INSTALLATION INSTRUCTIONS
Regulated Capacity
3
575 feet
[16.3 meter3/hour]
3
625 feet
[17.7 meter
3
720 feet
[20.3 meter
Maximum
/hour
/hour
3
/hour]
/hour
3
/hour]
3
,
69-0815-02