2 Components
Service manual
42
EBLQ+EDLQ011~W1 + EBLQ+EDLQ011~0W1
+ EK(2)CB EKMB9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
a
a
a
a
Backup heater contactor
Are the measured voltages of
the backup heater contactors
correct?
Action
Yes
Return to
backup heater and continue with
the next procedure.
No
Replace the specific backup
heater contactor(s), see
To perform an insulation check of the backup heater
1
First perform a check of the backup heater contactors, see
"Checking procedures" on page 41
2
Open all circuit breakers.
CAUTION
To prevent damage to the unit, all fuses MUST be opened
before using a Megger.
3
Set the Megger voltage to 500 V AC.
4
Connect the Megger ground test lead directly to the backup
heater ground wire.
CAUTION
Do NOT connect the Megger ground test lead to any other
ground wire.
5
Measure the insulation resistance between the following
terminals. The measured insulation resistance MUST be
>3 MΩ.
Net
Terminals
Single phase
K1M1‑ground.
Three phase
K1M1‑ground, K1M3‑ground,
K1M5‑ground, K2M1‑ground,
K2M3‑ground, K2M5‑ground.
NOTICE
The info above is an example of how to operate. Check the
wiring diagram for correct backup heater terminals, see
"5.2 Wiring diagram" on page 101
X6M
1 2 3
5 6 7 8
4
X7M
BLK
GRY
RED
BRN
L
N
3
4
1
2
K1M
F1T
3
4
5
6
1
2
K1M
3
4
5
6
1
2
K2M
3
4
5
6
1
2
K5M
13
14
F1T
F1T
F1T
F1T F1T
F1T
Q1DI
E1H E1H E1H
E2H E2H E2H
E3H
1
2
3
4
F2B
I
I
12
11
Q1L
22
21
a
a
a
Backup heater ground
Is the measured backup heater
insulation resistance correct?
Action
Yes
Return to
backup heater and continue with
the next procedure.
No
Replace the backup heater, see
.
Problem solved?
After all checking procedures listed above have been performed:
Is the problem solved?
Action
Yes
No further actions required.
No
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Repair procedures
To remove the backup heater
Prerequisite:
Turn OFF the unit via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
Prerequisite:
Remove the required plate work, see
1
Drain water from the water circuit, see
2
Cut the insulation that covers the upper backup heater coupling.
3
Open the insulation and remove the screw from the pipe clamp.
Содержание Altherma EBLQ011CAV3
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