Roberts Gorden 300 Danger, Wiring, Electrical Shock Hazard, Disconnect electric before service

SECTION 10: WIRING

SECTION 10: WIRING

DANGER

Electrical Shock Hazard

Disconnect electric before service.

More than one disconnect switch may be required to disconnect electric from equipment.

Equipment must be properly grounded.

Failure to follow these instructions can result in death or electrical shock.

All heater models require constant 120 V / 1Ø / 60 Hz power supply. Check heater rating plate for electrical rating for proper circuit sizing. For servicing, a disconnect switch of proper electrical rating should be installed in the vicinity of the heater. All heaters are equipped with thermostat connections suitable to power a 24 V thermostat.

10.2 Low Voltage Thermostat with One Heater

Heater must be wired and electrically grounded in accordance with local codes. In the absence of local codes in accordance with: United States: refer to National Electrical Code® NFPA 70 - latest revision Canada: refer to Canadian Electrical Code CSA C22.1 Part I - latest revision.

10.1 Positioning Thermostats

Aroom thermostat should be mounted on a vibration-free wall or column at a height of approximately 5' (1.5 m) from the floor to measure the ambient temperature. It should be clear of both cold drafts and the direct path of warm air from the heater.

Avoid mounting thermostat on outside walls or in areas directly exposed to radiant heat or sunlight. Install wall tag in a visible location near thermostat. See Page 5, Section 2.1 for wall tag details.

10.1.1 Fan Control

The heater’s axial fan can be used during the off- season for air circulation. A low voltage programmable thermostat with fan switch (P/N 90425400) must be used. See Page 21, Section

10.2for thermostat connection details. For the use of multiple heaters on one thermostat, See Page 22, Section 10.3 through Page 23, Section 10.4.

24 Volt
Thermostat
Heating Only	Terminal
	Strip

R

W

R

G

W

C

Electrical	Gas Supply
Supply

24Volt Thermostat with Fan Control

Terminal

R	Strip
G
	R
	G
W	W
	C
C
Electrical	Gas Supply
Supply

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