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The heating mode temperature rise is dependent upon the
system airflow, the supply voltage, and the heat kit size
(kW) selected. Use data provided in Tables 3, 4 and 5 to
determine the temperature rise (°F).
H EAT KIT NO M IN AL k W
CFM
3
5
6
8 0 0
1 2
1 9
2 3
1 0 0 0
9
1 5
1 9
1 2 0 0
8
1 2
1 5
1 4 0 0
7
1 1
1 3
1 6 0 0
6
9
1 2
1 8 0 0
5
8
1 0
2 0 0 0
5
7
9
230/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
H EA T K IT N O M IN A L k W
C FM
3
5
6
8 0 0
1 1
1 8
2 2
1 0 0 0
9
1 4
1 8
1 2 0 0
7
1 2
1 5
1 4 0 0
6
1 0
1 3
1 6 0 0
6
9
1 1
1 8 0 0
5
8
1 0
2 0 0 0
4
7
9
220/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
HEAT KIT NO M INAL k W
CFM
3
5
6
8 0 0
1 0
1 7
2 1
1 0 0 0
8
1 3
1 7
1 2 0 0
7
1 1
1 4
1 4 0 0
6
1 0
1 2
1 6 0 0
5
8
1 0
1 8 0 0
5
7
9
2 0 0 0
4
7
8
208/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
Model
3
5
6
AVPTC25B14
550
650
700
AVPTC29B14
550
650
700
AVPTC35B14
550
650
700
AVPTC37B14
550
650
700
AVPTC31C14
600
700
770
AVPTC33C14
600
700
750
AVPTC37C14
700
770
AVPTC39C14
700
770
AVPTC49C14
800
800
AVPTC59C14
800
800
AVPTC37D14
870
970
AVPTC49D14
950
1060
AVPTC59D14
990
1110
AVPTC61D14
1030
1150
MINIMUM CFM REQUIREMENTS FOR HEATER KITS
NOTE: For installations not indicated above the following
formula is to be used:
TR = (kW x 3412) x (Voltage Correction) / (1.08 x CFM)
Where:
TR
= Temperature Rise
kW
= Heater Kit Actual kW
8
1 0
1 5
1 9 /2 0
3 1
3 7
5 6
2 5
3 0
4 4
2 1
2 5
3 7
4 9
1 8
2 1
3 2
4 2
1 5
1 9
2 8
3 7
1 4
1 6
2 5
3 3
1 2
1 5
2 2
3 0
Table 6
8
1 0
1 5
1 9 /2 0
3 0
3 5
5 4
2 4
2 8
4 2
2 0
2 4
3 5
4 7
1 7
2 0
3 0
4 0
1 5
1 8
2 7
3 5
1 3
1 6
2 4
3 1
1 2
1 4
2 1
2 8
Table 7
8
1 0
1 5
1 9 /2 0
2 8
3 3
2 2
2 7
4 0
1 9
2 2
3 3
4 5
1 6
1 9
2 9
3 8
1 4
1 7
2 5
3 3
1 2
1 5
2 2
3 0
1 1
1 3
2 0
2 7
Table 8
HEATER (kW)
8
10
15
19
800
850
875
800
875
875
800
875
1050
800
875
1050
880
970
1090
1280
850
920
950
880
970
1090
1280
880
970
1090
1280
950
1090
1290
1345
950
1090
1290
1345
1060
1120
1220
1250
1150
1220
1520
1200
1240
1520
1520
1250
1320
1650
1690
Table 9
2 5
NOTE: The Temperature Rise Tables can also be used to
6 2
estimate the air handler airflow delivery. When using these
5 3
4 6
tables for this purpose set the room thermostat to maximum
4 1
heat and allow the system to reach steady state conditions.
3 7
Insert two thermometers, one in the return air and one in the
supply air. The temperature rise is the supply air tempera-
ture minus the return air temperature. Using the temperature
rise calculated, CFM can be estimated from the TR formula
above. See Spec Sheets and/or Service Manual for more
information.
2 5
Comfort Setting Menu (CFS): There are 6 options
available in the Comfort Setting Menu which impacts system
5 9
5 1
target run time and electric heat functionality. Electric heat
4 4
operation adjustments only apply if a communicating heat
3 9
pump is installed. Comfort Setting Options 1 – 5 have set
3 5
values for the System Target Runtime and option 6 enables
additional menus to customize all comfort settings. See list
below for the System Target Run times associated with the
first 5 Comfort Settings. These first 5 options are setup to
help satisfy the thermostat slower or faster based on the
2 5
selection where option 1, with a 10 minute Target Runtime,
is attempting to satisfy much faster than option 5, with a 30
minute Target Runtime.
5 6
4 8
4 2
System Target Runtime:
3 7
3 3
Comfort Setting Option 1) 10 Minute System Target Runtime
Comfort Setting Option 2) 15 Minute System Target Runtime
Comfort Setting Option 3) 20 Minute System Target Runtime
Comfort Setting Option 4) 25 Minute System Target Runtime
Comfort Setting Option 5) 30 Minute System Target Runtime
20
25
Electric Heat Adjustment: This system will automatically
determine if the heat pump is capable of satisfying the
thermostat in the selected System Target Runtime. If the heat
pump is unable to satisfy in the selected time, electric heat
settings will determine how many attempts should be given
to the heat pump before temporarily locking it out and using
the furnace. These electric heat settings also determine at
what time the system should remove the temporary heat
pump lockout and run the heat pump again.
1750
There are four adjustable items associated with back up
electric heat operation control. In the same way as the
System Target Time, each of these items have defaulted
values for Comfort Settings 1 – 5. Only when Comfort Setting
6 is selected will each item be available for full adjustment.
11
3412 = Btu per kW
VC*
= .96 (230 Supply Volts)
= .92 (220 Supply Volts)
= .87 (208 Supply Volts)
1.08 = Constant
CFM = Measured Airflow
VC* (Voltage Correction)
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