Honeywell VR8205 Installation Instructions Manual

VR8105, VR8205, and VR8305
Direct Ignition Combination
Gas Controls
APPLICATION
These direct ignition gas controls are used in gas-fired
appliances with up to 415 ft
3
pressure drop (8.5 m /hr at 0.24 kPa) on natural gas.
They include a manual valve, two automatic operators
and a pressure regulator.
Size Inlet-
Model Outlet (in.)
VR8105 1/2 x 1/2
VR8205
b,c
VR8305
1/2 x 3/4
b,c
VR8305
3/4 x 3/4
b,c
VR8305
a
Capacity based on 1000 Btu/ft
at 0.25 kPa pressure drop).
b
Capacity is reduced by 5 percent when using an outlet screen.
c
Valves are guaranteed at only 77 percent of the rating.
d
Minimum regulation for LP gas is 15,000 Btuh.
e
Minimum regulation for LP gas is 40,000 Btuh.
f
Minimum regulation for LP gas is 50,000 Btuh.
Table 2. Gas Capacity Conversion Factor.
Gas Specific Gravity
Manufactured 0.60
Mixed 0.70
Propane 1.53
3
/hr capacity at 1 in. wc
Table 1. Valve Capacity.
AGA Certified
Capacity for
Natural Gas
3
ft /hr m
85 2.3
150 4.2
240 6.8
270 7.6
300 8.5
3
, 0.64 sp gr natural gas at 1 in. wc pressure drop (37.3 MJ/m
Multiply Listed
Capacity By
0.516
0.765
1.62
These gas controls are available in a range of valve
capacities; see Table 1. (Table 2 provides gas capacity
conversion factors.) The suffix letter indicates
temperature range and regulator type; see Table 3.
a
AGA Certified Minimum
Regulation for
Natural Gas
3 3
/hr ft /hr
d
10
e
20
f
30
Table 3. Model Number Suffix Letter Designation.
Model No.
Suffix
Letter
A
C
H
K
M
P
Q
R
INSTALLATION INSTRUCTIONS
AGA Certified Maximum
Regulation for Natural
3 3
m /hr ft /hr
0.4 120
0.6 200
0.8 340
370
415
3
, 0.64 sp gr natural gas
Ambient
Temperature Range
0°F t0 175° F
(-18°C to +79°C)
-40°F to +175°F
(-40°C to +79°C)
Gas
3
m /hr
3.4
5.7
9.6
10.5
11.8
Pressure
Regulator Type
Standard
Step-opening
Slow-opening
Standard
Step-opening
Two-stage
Convertible
69-1226-04