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Installation of indoor unit
EDUS281008
38
Installation of indoor / outdoor unit
3P250363-3B
English
14
Purchase and install the electric heater kit as in Table 7.
•
Also refer to the installation and operating instructions that
•
come with the electric heater kit.
The indoor unit fan operates at H speed during HEATER
•
operation.
Table 7
Model
Electric heater kit model name
HKR-03
HKR-05C
HKR-06
HKR-08C
HKR-10C
18 type
1
24 type
1
1
: Auxiliary and Heat Pump Lockout: Electric heater opera-
tion with heat pump is allowed.
: Heat Pump Lockout: Only electric heater operation is
allowed. Heat pump and electric heater cannot operate at
the same time.
Turn off power supply to all indoor and outdoor units.
(1)
Remove the front panel (upper) and the electric heater
(2)
slot cover.
El
e
ct
ri
c h
ea
t
er
s
lot cov
er
F
r
o
n
t p
ane
l (upp
er
)
Remove the circuit breaker mounting bracket from the
(3)
heater element in the electric heater kit by removing
the 2 screws. (Do not remove the harness)
* The HKR-03 and HKR-06 have no circuit breaker mount-
ing bracket, so proceed from the next step.
C
ir
cu
i
t
brea
k
er
m
ou
n
t
ing
bra
ck
e
t
H
ea
t
er
e
l
emen
t
Insert the heater element in the electric heater kit into the
(4)
electric heater slot, and use six of the screws taken out
in step (2) to install it. When doing so, check that airfl ow
is matched. Refer to the heater kit for details of airfl ow.
Install the circuit breaker mounting bracket removed
(5)
in step (3) into the blower deck.
* The HKR-03 and HKR-06 have no circuit breaker mount-
ing bracket; Procure and install a circuit breaker.
Connect the relay connector of the heater kit to the relay
(6)
connector of the product. Disconnect the empty connec-
tor connected to the relay connector of the product.
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