Test Mode; To Turn Off Gas To Appliance - Munchkin HIGH EFFICIENCY HEATER with the "925" Controller Operating Instructions Manual

G. TEST MODE
This function is intended to simplify the gas valve adjustment if needed. Listed below are the
recommended limits on each Munchkin Heater and the Combustion Settings. Automatic modulation
does not take place when the controller is in Test mode, only temperature limitation based on the
Munchkin Central Heating set point. The user will be allowed to increase or decrease the fan speed
by pressing in either the
To activate the Test mode simply press the
activated, you will see in the display
combustion levels should always be taken at the highest and lowest fan speed. After 10 minutes, the
Test mode stops automatically. To exit Test Mode press
Carbon CO ppm Monoxide
Carbon CO % Monoxide
2
Fig. 6-1
H. TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Remove the front cover.
4. Turn gas shutoff valve to "off".
5. Install front cover.
Water temperature over 125 degrees F. can cause severe burns
instantly, or death from scalds. Children, disabled, and elderly
are at highest risk of being scalded. See instruction manual
before setting temperature at water heater. Feel water before
bathing or showering! Temperature limiting valves are available.
Fig. 6-2
S1/- or S2/+ keys.
S2/+
Ser
COMBUSTION SETTINGS
HIGH FIRING RATES and LOW FIRING RATES ON ALL MODELS
Natural Gas
low
0–20 ppm
8-1/2% – 9-1/2%
DANGER
START-UP PROCEDURES / SERVICING
and S3/Program
and the actual fan speed. The measurement of the
S1/- and S2/+
high
70 ppm–135 ppm
8-1/2% – 9-1/2% 9-1/2% – 10-1/2%
key together for 1 second. Once
key together for 1 second.
Propane LP
low high
0–20 ppm 80–150 ppm
9-1/2% – 10-1/2%
37