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SEQUENCE OF OPERATION
The electric heat in this unit has an on- -delay of 1- -30 seconds and
an off- -delay of 30- -60 seconds. The on- -delay will delay the start of
the electric heater and blower 1- -30 seconds after a W1 call.
The off- -delay is 30- -60 seconds and will keep the heater and
blower running after the W1 call ends. The blower will energize
with electric heater if not already running.
VERIFY INSTALLATION
After completion of heater installation, check wiring to ensure
tightness and that proper connections and routings have been
made. Ensure all electrical covers are in place. Reinstall blower
access panel before turning unit power on.
Nominal
Heat
Used
Heat
Kit
on
Capacity
Model
Size
@ 240V
kW
EHK2-
18/24/
5
05B
30/36
EHK2-
18/24/
7.5
08B
30/36
EHK2-
18/24/
10
10B
30/36
*
†† Copper wire must be used. If other than uncoated (non ---plated), 75_C ambient, copper wire (solid wire for 10 AWG and smaller, stranded wire for larger
than 10 AWG) is used, consult applicable tables of the National electric Code (ANSI/NGPA 70).
*
‡‡ Length shown is as measured 1 way along wire path between unit and service panel for a voltage drop not to exceed 2%.
Table 4 – Electric Heater Electrical Data
Heater
Shipping
Capacity
Weight
(MBH)
lbs. (kg)
208V
240V
5.1 (2.3)
14.8
17.1
5.1 (2.3)
22.2
25.6
5.1 (2.3)
29.6
34.1
SECONDARY
Fig. 3 - - Connection of Transformer
MAX. Fuse
or Breaker
MIN. Circuit
Ampacity
Ampacity
(HACR)
208V
240V
208V
240V
24.9
28.3
30
30
36.2
41.4
50
50
47.4
54.4
60
60
3
PRIMARY
Min Ground
Min Wire Size
Wire Size
(AWG) ††
208V
240V
208V
240V
10
10
12
12
8
8
10
10
6
6
10
10
BLK
YEL
BLK
RED
A13092
Max Wire
Length (Ft) ‡‡
208V
240V
66
66
59
60
78
80
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