16
Gas Conversion Instructions
Unless specifically ordered for operation on natural gas, this water heater is
normally equipped for operation on liquefied petroleum (LP) gas but may be
converted by following these gas conversion instructions.
Caution: Make sure gas to be supplied to this water heater following the
conversion matches the gas being converted to.
To convert from LP gas to natural gas
(For control shown in Figure 6 only)
1. Depress and rotate gas control knob clockwise
to the “OFF” position.
2. Change main gas regulator by removing cap from gas regulator. Depress
and rotate knob clockwise
to NAT. setting using a screwdriver.
Replace cap.
Figure 6
3. Change the pilot regulator by removing pilot regulator cap. Depress and
rotate knob counterclockwise
to the NAT. setting using a screwdriver.
Replace cap.
4. Remove the outer door. Remove, or slide open, the inner door.
5. Disconnect thermocouple, gas supply tube and pilot tube from the gas valve
and remove the burner assembly from the water heater.
6. Remove the “RED” color coded L.P. orifice and pilot assembly and replace
with natural gas orifice and pilot assembly provided in the cloth bag attached
to the water heater.
CAUTION
All gas conversions must be performed by qualified service personnel only.
Summary of Contents for M-I-MS40T6LX
Page 21: ...21 Lighting and Shutdown Instructions...
Page 27: ...27 TYPICAL INSTALLATION...
