24
30484 Rev Q
09/04
MAXUS DIRECT VENT HEATER
3. Gas Pressure
An inlet pressure tap and an outlet pressure tap are available on the faces of the standing pilot and the electronic
ignition gas valves. Table 2 shows optimum gas pressure information. Consult your local gas company for assistance
in determining the proper orifice for your altitude or refer to
ANSI Z223.1-latest edition, Appendix F
.
4. Fuel Conversions
Natural or propane gas conversions necessary to meet the application need to be made by a qualified technician
using Hearth & Home Technologies specified and approved parts.
In the event your appliance must be converted to use propane, you must use a CKMAX6P Conversion Kit. To be
converted to use natural gas, you must use a CKMAX6N Conversion Kit.
Table 2
Gas Information for Electronic and Standing Pilot Appliances
Table 3
Gas Information for Standing Pilot
INPUT RATING
ORIFICE SIZE
WARNING!
This valve has been preset at the factory. Altering
settings may result in fire hazard or bodily injury.
Inlet Gas Supply Pressure (NG)
4.5 (min.) - 7.0 (max.) in. w .c.
Optimal Manifold Pressure (NG)
3.5 in. w .c.
Inlet Gas Supply Pressure (LP)
11.0 (min.) - 14.0 (max.) in. w .c.
Optimal Manifold Pressure (LP)
10 in. w .c.
MAXUS 60
Input Rate (NG)
40,000 BTU/hr.
Input Rate (LP)
37,000 BTU/hr.
Orifice Size (NG)
.125 in.
Orifice Size (LP)
.073 in.
MAXUS 60