GMV DC Air Handler
11
Return ductwork: Do not terminate the return ductwork in an area that can introduce toxic, or
objectionable fumes/odors into the ductwork. The return ductwork is to be introduced into the air
handler bottom (up flow configuration).
Return Air Filters: Each installation must include a return air filter. This filtering may be performed
at the air handler or externally such as a return air filter grille.
4.7 Electric Heater
The air handlers listed in this manual do not have factory installed electric heater. Electric heater
is available as an accessory. Please refer to installation instructions provided with heater kit for the
correct installation procedure.
Refer to the “installing electric heater” section of this manual and the instructions
provided with the heater kit for the correct installation procedure.
The electrical characteristics of the air handler, the electric heater kit, and the
supply power should be identical. This air handler does not have factory 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.
E-HEAT mode setting method: under off status, press ON/OFF and Menu button
for 5s to turn on or turn off E-heat mode. After that, the wired remote control pop-up box shows
"Setting is done" for 1s, and indoor unit can set “Electric heating mode”. When E-HEAT mode has
been set and indoor unit operates under heating mode, if outdoor unit stops operation because of
error, indoor unit will switch to operate under electric heating mode.
After the electric heater is shutdown, the fan of indoor unit will delay for a few
minutes and then shut down so that the indoor unit can blow the waste heat and relieve the heat
accumulation in the air duct.
During installation and debugging, pay attention to verify the switch sequence of
electric heater and fan, ensure the fan must be turned on when electric heater operation and ensure
the electric heater is turned off before the fan to avoid unsafe.
4.7.1 Electric Heater Kits Available
Model
Electric heater
Description
Manufacturer of
electric heater
GMV-ND09A/B-T(U)
GMV-ND12A/B-T(U)
GMV-ND18A/B-T(U)
21-4227-00
Circuit breaker, 5 kW electric heater
TUTCO
GMV-ND24A/B-T(U)
GMV-ND30A/B-T(U)
GMV-ND36A/B-T(U)
21-4227-00
21-4216-00
21-4216-01
Circuit breaker, 5 kW
、
8 kW
、
10 kW
electric heater
GMV-ND42A/B-T(U)
GMV-ND48A/B-T(U)
GMV-ND54A/B-T(U)
GMV-ND60A/B-T(U)
21-4227-00
21-4216-00
21-4216-01
21-4217-00
Circuit breaker, 5 kW
、
8 kW
、
10 kW
、
15 kW electric heater
Summary of Contents for GMV-ND09A/B-T
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