GVZC20 Service Manual
ACCESSORIES
115
Optional electric heaters may be added, in the quantities
shown in the specications section, to provide electric resis-
tance heating.
Under no condition shall more heaters than the quantity
shown be installed.
The low voltage circuit in the air handler is factory wired
and terminates at the location provided for the electric
heater(s).
A minimum of eld wiring is required to complete the
installation.
Other components such as a Heating/Cooling Thermostat
and Outdoor Thermostats are available to complete the
installation.
For heater kit installation, it is important to set the capacity
of the electric heater at the communicating thermostat and
DIP switch.
SETTING WITH COMMUNICATING THERMOSTAT:
For a detailed procedure of thermostat heater kit capacity
selection process, please refer the Set-Up section of CTK04
ADDENDUM in this manual.
SETTING WITH DIP SWITCH:
In the event of loss of communication, emergency mode
can be activated. In emergency mode operation, heater kit
selection will be driven by the DIP switch (S9, S10, S11 and
S12) selection from the control board on indoor unit.
For further detail, read an emergency mode section in this
manual.
The heating mode temperature rise is dependent upon the
system airow, the supply voltage, and the heater kit size
(kW) selected. Use data provided in below Tables to deter-
mine the temperature rise (°F).
3 5 6 8 10 15 19 20 25
AVPEC25B14* 550 650 700 715 875
AVPEC37C14* 850 900 1000 1120 1220 1250
AVPEC59D14* 990 1110 1200 1240 1520 1520
AVPEC61D14* 1030 1150 1250 1320 1650 1690 1715
Model
HEATER(kW)
HTR
KW
3.0
KW
4.7
KW
6.0
KW
7.0
KW
9.5
KW
14.2
KW
19.5
KW
21.0
KW
BTUH 10200 16200 20400 23800 32400 48600 66500 71600
ELECTRIC HEATER CAPACITY BTUH
3 5 6 8 10 15 19/20 25
800 12 19 23 31 37
1000 9 15 19 25 30 44
1200 8 12 15 21 25 37 49 62
1400 7 11 13 18 21 32 42 53
1600 6 9 12 15 19 28 37 46
1800 5 8 10 14 16 25 33 41
2000 5 7 9 12 15 22 30 37
CFM
HEAT KIT NOMINAL kW
240/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
3 5 6 8 10 15 19/20 25
800 11 18 22 30 35
1000 9 14 18 24 28 42
1200 7 12 15 20 24 35 47 59
1400 6 10 13 17 20 30 40 51
1600 6 9 11 15 18 27 35 44
1800 5 8 10 13 16 24 31 39
2000 4 7 9 12 14 21 28 35
CFM
HEAT KIT NOMINAL kW
230/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
3 5 6
8 10 15 19/20 25
800 10 17 21 28 33
1000 8 13 17 22 27 40
1200 7 11 14 19 22 33 45 56
1400 6 10 12 16 19 29 38 48
1600 5 8 10 14 17 25 33 42
1800 5 7
9 12 15 22 30 37
2000 4 7 8 11 13 20 27 33
CFM
HEAT KIT NOMINAL kW
220/1/60 SUPPLY VOLTAGE - TEMP. RISE °F