Thermostat - Brant Radiant Heaters DES3 Series Manual

3.0 Installation •

Thermostat

This heater must be installed and serviced by trained gas installation and service
personnel only.
Do not bypass any safety features or the heater's built in safety mechanisms will be
compromised.
• This heater must be electrically grounded in accordance with the Canadian Electrical Code C22.1
(latest edition).
• Applications must conform to the Canadian Electrical Codes C22.1 (latest edition) when an external
electrical source is used.
• Refer to the rating label on heater for the required amperage rating.
• Under no circumstance is the electrical supply line to the heater to provide any assistance in the
suspension of the heater.
• Neither the electrical supply line nor sprinkler heads shall be located within the minimum clearances
to combustibles.
Thermostat
The DES3 Series comes standard requiring a 120VAC thermostat connection. An optional 24VAC internal
relay (24VAOX) may be factory installed if the heater is to be controlled via a 24VAC thermostat. A 40VA
transformer is necessary when using the 24VAOX option.
NOTE: A relay transformer may be used in lieu of the factory installed 24VAOX option.
NOTE: Different thermostats operate according to their particular features. Refer to thermostat
specifications for details. Refer to figure 3.33 for field wiring diagrams.
DES3 Series heaters with 24VAOX option require a 24VAC, single-stage thermostat to operate. The
burner control box is eqipped with a round terminal strip that accepts two (2) 1/4" female spade terminals.
Do not supply 120 VAC to the 24VAC connection.
WARNING
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NOTICE
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DES3 Series