54
LP-185 Rev. 9.9.14
Adjustments to the throttle screw or offset may only be made by a qualified gas technician using a calibrated combustion analyzer
capable of measuring CO
2
and CO. Failure to follow this instruction could result in fire, explosion, property damage, severe personal
injury, or death.
PART 9 – FIELD WIRING
ELECTRICAL SHOCK HAZARD
– Turn off electrical power supply at service entrance panel before making any electrical connections.
Failure to do so can cause severe personal injury or death.
Wiring must be N.E.C. Class 1. If original wiring supplied with the boiler must be replaced, use only UL Listed TEW 105
o
C wire or
equivalent. Boiler must be electrically grounded as required by National Electrical Code ANSI/NFPA 70
– Latest Edition.
In order to ease future servicing and maintenance, it is advised to label all wires. Wiring errors can cause improper and dangerous
operation. Failure to follow these instructions could result in property damage or personal injury.
A. INSTALLATION MUST COMPLY WITH:
National Electrical Code and any other national, state, provincial or local codes or regulations.
In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.
B. FIELD WIRING
The boiler box has a 24 volt terminal strip on the boiler cabinet and a 120 volt terminal strip enclosed in the electrical box. Each terminal
connection is clearly marked to assure correct installation.
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 30.
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.
To avoid electrical shock, turn off all power to the boiler prior to opening an electrical box within the unit. Ensure the power remains off
while any wiring connections are being made. Failure to follow these instructions could result in component or product failure, serious
injury, or death. Such product failure IS NOT covered by warranty.
Summary of Contents for 140M
Page 12: ...12 LP 185 Rev 9 9 14 Figure 1 Dimensions T 50M T 80M 80M ...
Page 13: ...13 LP 185 Rev 9 9 14 Figure 2 Dimensions 140M 199M 399M ...
Page 48: ...48 LP 185 Rev 9 9 14 I DIAGRAMS FOR SIDEWALL VENTING Figure 25 Venting ...
Page 49: ...49 LP 185 Rev 9 9 14 Figure 26 Sidewall Venting ...
Page 50: ...50 LP 185 Rev 9 9 14 J DIAGRAMS FOR VERTICAL VENTING Figure 27 Vertical Venting ...
Page 55: ...55 LP 185 Rev 9 9 14 Figure 29 ...
Page 70: ...70 LP 185 Rev 9 9 14 Figure 31 ...
Page 71: ...71 LP 185 Rev 9 9 14 Figure 32 ...
Page 72: ...72 LP 185 Rev 9 9 14 Figure 33 ...
Page 73: ...73 LP 185 Rev 9 9 14 Figure 34 ...
Page 74: ...74 LP 185 Rev 9 9 14 Figure 35 ...
Page 75: ...75 LP 185 Rev 9 9 14 Figure 36 ...
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