BuckMaster CR18, User Manual

Page: 18 / 54

Page 16
GAS PRESSURE CHECK
Check the inlet pressure to the burner to ensure that it is as shown in the table below. NOTE:
The pressure check point is located on right side of valve facing the burner.
The appliance and its appliance main gas valve must be disconnected from the gas supply piping
system during any pressure testing of that system at test pressure in excess of 1/2 psi
(3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its equipment shut-
off valve during any pressure testing of the gas supply piping system at test pressures equal to or
less than 1/2 psi (3.5 kPa).
MODEL
18 (CR, DX) 24 / 30 (CR, DX)
Gas Natural Propane (LP) Natural Propane(LP)
Maximum Heat Input 30,000 30,000 40,000 40,000
Minimum Heat Input 23,000 23,000 29,000 29,000
Gas Inlet Pressure:
Maximum
10.5 ins. W.C. 13.0 ins. W.C. 10.5 ins.W.C. 13.0 ins. W.C.
Minimum 4.5 ins. W.C. 10.5 ins. W.C. 4.5 ins. W.C. 10.5 ins. W.C.
Manifold Pressure 3.5 ins. W.C. 10.0 ins. W.C. 3.5 ins. W.C. 10.0 ins. W.C.
NOTE: On initial installation it may be required to bleed out air in the gas lines. Do this by
holding the control knob and turning the knob to the pilot position for about 30 seconds.
The pressure should be checked with the heater burning and the control set on high. After
measuring the pressure, close pressure tap screw, ensuring there are no leaks. Regulator pressure
check screw located above “OFF/
P
ILOT/ON”
knob at right upper corner of valve.
WARNING:
This appliance is equipped for (natural or propane) gas. Field conversion is
not permitted.