10
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 tempera-
ture rise (°F).
NOTE:
For emergency heat, set the dipswitch on PCB. For heating
mode, use the thermostast user menu.
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
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)
NOTE:
The Temperature Rise Tables can also be used to estimate
the air handler airflow delivery. When using these tables for this
purpose set the room thermostat to maximum heat and allow the
system to reach steady state conditions. Insert two thermometers,
one in the return air and one in the supply air. The temperature
rise is the supply air temperature minus the return air temperature.
Using the temperature rise calculated, CFM can be estimated from
the TR formula above. See Specification Sheet and/or Service
Manual for more information.
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
Table 6
15
19
20
25
HEATER (kW)
MINIMUM CFM REQUIRED FOR HEATER KITS
Model
3
5
6
8
10
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
31
HEAT KIT NOMINAL Kw
CFM
230/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
Table 3
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
230/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
Table 4
CFM
HEAT KIT NOMINAL Kw
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
230/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
Table 5
