WARNING!
Incorrect or improper wiring may result in shock, injury or death. Field wiring to the heater must be
connected and grounded in accordance with national, provincial, local codes and to the guidelines
in this manual. Refer to the most current revisions to the CAN/CSA B149.1 and 2.
2.0 Installation • Electrical Requirements
NOTICE
Radiant heat may damage the flexible power cord. Always keep the flexible power cord away from the heater. Do not allow
the power cord to be subjected to radiant heat.
Control systems are initilized by either 120V or optional 24V control voltage. A 120V system can be operated directly
with 120V to the heater. Heaters with the optional relay can be controlled with 24V.
Transformers (sold seperately) must be used to supply power of sufficient VA rating for single or multiple connected
installations.
Important!
Proper grounding and polarity are essential. If the system is not properly grounded, it cannot determine
the presence of a flame and will lockout and shut off.
For wiring of controls see Figure 2.7 below. It is recommended that the control be installed on the hot side of a fused
supply line and have a sufficient ampere capacity rating for the heater(s) it will control (see Figures 3.1 & 3.2).
Figure 2.7
•
Typlical Field Wiring
Optional
mounting
bracket
(P/N: PH-BKT)
Optional
mounting
bracket
(P/N: PH-BKT)
120V black
power cord
120V black
power cord
PH Series
Heater
PH Series
Heater
24V yellow
control cord
120V thermostat,
timer or switch
(field supplied)
Hot
Neutral
+ Hot
- Neutral
120V
24V
Transformer
PH Series 120V
PH Series 120V with 24V Control
(PH-24VAO)
15
