5
Pilot Burner Adjustment
1. Remove Pilot Adjustment Cap & Gasket
2. Adjust pilot key to provide properly sized flame.
3. Replace Pilot Adjustment Cap & Gasket. Leak test per item No. 13
To operate RB Dial (HI-LO Regulator)
1. Rotate dial clockwise towards HI setting for faster heating and
counterclockwise towards LO setting for slower heating rate.
2. Recommended: Use HI heating rate for midwinter and LO
heating rate for spring and fall.
To convert regulator from natural gas operation to L.P. Gas
operation or L.P. Gas Operation to natural gas operation:
1. Turn off gas and electricity (if so equipped) before starting conversion.
2. This control has a gas converter feature. The control usually comes set in the natural gas
position.
3. When changing system from natural to L.P. (or L>P> to natural gas), the pilot and burner
orifices must also be changed. (See page 10 for orifice sizes)
4. Remove RB Dial Cap with appropriate screwdriver.
5. Insert a small screwdriver blade in Converter Plunger; depress plunger fully, and rotate it
90°(direction immaterial) to change to L.P. or natural gas operation as desired.
6. Replace cap and tighten.
7. Check outlet pressure with pressure gage at outlet pressure tap to determine if the gas
valve is functioning within manufacturer’s specifications.
8. After conversion has been completed, leak test per item no. 13.
Technical Specifications
A
Ambient Temperature Operating Range
0°F to 185°F
B
Mounting Position
MULTIPOISE
C
Rated Inlet Pressure
1/2 psig
D
1.0" P.D. Capacity
71 CF/hr (3/8 x 3/8)
79 CF/hr (1/2 x 1/2)
E
Range of Regulation
(3/8 x 3/8)
(1/2 x 1/2)
6,000 – 150,000 BTU / hr (Nat. Gas)
12,000 – 200,000 BTU / hr (LP Gas)
8,500 – 162,000 BTU / hr (Nat. Gas)
12,000 – 226,000 BTU / hr (LP Gas)
F
Outlet Pressure Range
3.0" W.C to 5.0" W.C (suffix R)
8.0" W.C to 12.0" W.C (suffix R-LP)
0.5 to W.C to 6.0" W.C (suffix RB)
2.0" W.C to 12.0" W.C (suffix RB-LP)
2.0" W.C to 6.0" and 9.0" W.C to 12.0"W.C (suffix RC, RBC)
G
Vent Limiter
.0135" diameter
H
Automatic Valve:
Pull-In Voltage
Drop-Out Voltage
Resistance
Millivolt operator
110V to 200mV
25 mV to 50 mV
1.6 – 1.7 Ohms
I
Safety Magnet
Hold-in Current
Drop-out Current Resistance
Manual rest Type
150 to 475 mA
70–140 mA (Other drop-out ranges are available)
18–22 mOhms.
J
Closing Time
≤ 1 second
K
Ambient Temperature Range
0° F to 185F
