3
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.
240
COM
208
BLK
YEL
BLK
RED
SECONDARY
PRIMARY
A13092
Fig. 3 -- Connection of Transformer
Table 4 – Electric Heater Electrical Data
Heat
Kit
Model
Used
on
Size
Nominal
Heat
Capacity
@ 240V
Shipping
Weight
Heater
Capacity
(MBH)
MIN. Circuit
Ampacity
MAX. Fuse
or Breaker
Ampacity
(HACR)
Min Wire Size
(AWG) ††
Min Ground
Wire Size
Max Wire
Length (Ft) ‡‡
kW
lbs. (kg)
208V
240V
208V
240V
208V
240V
208V
240V
208V
240V
208V
240V
EHK2-
05B
18/24/
30/36
5
5.1 (2.3)
14.8
17.1
24.9
28.3
30
30
10
10
12
12
66
66
EHK2-
08B
18/24/
30/36
7.5
5.1 (2.3)
22.2
25.6
36.2
41.4
50
50
8
8
10
10
59
60
EHK2-
10B
18/24/
30/36
10
5.1 (2.3)
29.6
34.1
47.4
54.4
60
60
6
6
10
10
78
80
* †† 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%.
