Air Handlers
installed electric heater. Electric heater is available as an accessory. If installing this
option, the only heater kits that can be used are the series as indicated below. It is
forbidden to use the electric heater other than those recommended.
Installation and debugging when attention to verify the switch
sequence of electrical heating and fan, ensure the fan must be turned on when electric
heating operation and ensure the electric heating is turned off before the fan to avoid
unsafe.
4.6.1 Electric Heater Kits Available
Ref. air handler use(ton)
FLEXXHTR5KW
Circuit breaker, 5kW heat strip
FLEXXHTR8KW
Circuit breaker, 8kW heat strip
FLEXXHTR10KW
Circuit breaker, 10kW heat strip
FLEXXHTR15KW
Circuit breaker, 15kW heat strip
FLEXXHTR20KW
Circuit breaker, 20kW heat strip
4.6.2 Electric Heater Kits Installation
(1) Ensure that all power supply is disconnected prior to installing the heater kit.
(2) A means of strain relief and conductor protection must be provided at the supply
wire entrance into cabinet.
(3) Use copper conductors only.
(4) Installation must follow national electric code and other applicable codes.
(5) If this appliance is installed in an enclosed area such as a garage or utility room
with any carbon monoxide producing appliance, ensure the area is properly
ventilated.
1) Refer to the Table for appropriate heater kit.
2) Check any physical damage, do not install damaged heater kit.
3) Remove the upper access panel from air handler.
4) Remove cover plate from air handler.
5) Slide the heater kit in to the slot and secure element plate with previously
removed screws.
6) Insert power leads into the circuit breaker lugs or stripped red and black wires
(for heater kit without circuit breaker) and tighten.
7) Connect ground wire to ground lug.