Boiler Manual |
E. KROM SCHRODER VALVE FOR 399M
FIRST VALVE
OFFSET ADJUSTMENT
Fig.
GAS VALVE SHUT OFF
INLET SOLENOID
THROTTLE SCREW
OUTLET SOLENOID WARNING: IF FOR ANY REASON THE THROTTLE NEEDS TO BE ADJUSTED, IT IS VERY IMPORTANT THAT A COMBUSTION ANALYZER BE USED TO ENSURE SAFE AND PROPER OPERATION.
THE ADJUSTMENT COULD AFFECT THE CO/CO2
LEVELS. MAKE SURE THE LEVELS CORRESPOND TO THE COMBUSTION SETTING CHART FIG
MAIN GAS VALVE
MEASURE OFFSET HERE
PART 9: FIELD WIRING
WARNING
ELECTRICAL SHOCK HAZARD — For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.
NOTICE
Wiring must be N.E.C. Class 1.
If original wiring as supplied with boiler must be replaced, use only TEW 105 °C wire or equivalent.
Boiler must be electrically grounded as required by National Electrical Code ANSI/NFPA 70 — latest edition.
A.INSTALLATION MUST COMPLY WITH:
1.National Electrical Code and any other national, state, provincial or local codes or regulations.
2.In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.
B.FIELD WIRING
The Munchkin Boiler box has a 24 volt terminal
strip on the boiler cabinet and 120 volt terminal strip enclosed in the electrical box. Each terminal connection is clearly marked to assure correct in- stallation.
C.LINE VOLTAGE WIRING
1.Connect 120 VAC power wiring to the line voltage terminal strip located inside the electric junction box, as shown in figure 9.5.
2.Wire the Boiler Primary Circulator (P1) to the terminal strip. See wiring diagram in this section.
D.THERMOSTAT
1.Connect room thermostat or end switch
2.Install thermostat on inside wall away from influences of drafts, hot or cold water pipes, lighting fixtures, television, sunrays or fireplaces.
3.Thermostat anticipator (if applicable):
a.If connected directly to boiler, set for 0.1 amps.
b.If connected to relays or other devices, set to match total electrical power requirements of connected devices. See specifications of the device and thermostat instructions for details.
47