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AM Series Boiler & Water Heater User Manual
CHAPTER 5: INSTALLATION – ELECTRICAL
5.2 Electrical Connections – Boilers Only
5.2.1 Enable/Disable - Boilers
For remote enabling/disabling of a boiler, follow the instructions below.
Wiring an ON/OFF Control to the Boiler
1.
Remove the boiler front cover according to the instructions in Section 10.14.
2.
Connect the leads of a two conductor cable (with a minimum cross section of #18 AWG) to
your enable/disable controller and run the cable to the boiler electrical junction box.
Open the boiler electrical junction box cover and connect the leads of the cable to the "10"
3.
and "11" terminals as shown in Figure 5-5, below.
4.
Enter the Installer Menu (Section 9.16) and ensure that parameter 2003 is set to 0 (zero).
NOTE:
The maximum cable length permitted is 32 feet (10 meters). For longer lengths, up to 300
feet (100 meters), a shielded cable with the shield connected to the ground must be used.
Figure 5-5: Enable/Disable Electrical Connection to Boiler (Terminals 10 and 11)
5.2.2 Installing the Outdoor Temperature Sensor - Boilers
The outdoor temperature sensor is supplied with the boiler. Install the outdoor temperature
sensor on an exterior wall of the building facing NORTH or NORTH-EAST, at a height of
between 4 feet and 6 feet from the ground level. On multi-story buildings, install the sensor near
the upper half of the second floor. Do not install the sensor above doors, windows or ventilation
outlets nor directly under balconies or gutter pipes. Do not shield the outdoor temperature
sensor. Do not install the sensor on walls without overhangs, or that are not protected from rain.
Connect the outdoor temperature sensor to the boiler to terminals "14" and "15" (see Figure 5-5,
above).
OMM-0100_E • GF-146 • 11/15/2019
Enable/disable
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