Daikin EBLA16DA3V3 Service Manual

3 | Components
Service manual
114
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
To perform an insulation check of the backup heater
Prerequisite: First perform a resistance check of the backup heater, see "Checking
procedures"[4112].
1 Open all circuit breakers.
CAUTION
To prevent damage to the unit, all circuit breakers MUST be opened before using a
Megger.
2 Set the Megger voltage to 500VAC.
3 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.
4 Measure the insulation resistance between the following terminals. The
measured insulation resistance MUST be >3MΩ.
▪ K1M1‑ground
▪ K1M3‑ground
▪ K1M5‑ground
▪ K2M1‑ground
▪ K2M3‑ground
▪ K2M5‑ground
Is the measured backup heater
insulation resistance correct?
Action
Yes Return to "Checking
procedures"[4112] of the backup
heater and continue with the next
procedure.
No Replace the backup heater, see "Repair
procedures"[4117].
To perform an electrical check of the backup heater
Prerequisite: First perform an insulation check of the backup heater, see "Checking
procedures"[4112].
Prerequisite: Check the circuit breaker. Reset if it has tripped.
Prerequisite: Check that the backup heater thermal protector functions correctly.
Reset if it has tripped. See "3.4Backup heater thermal protector"[4121].
1 Turn ON the power of the unit.
INFORMATION
If the circuit breaker or the backup heater thermal protector trips again, determine
the root cause of the problem. Something is overloading the electrical circuit or
creating a short-circuit.
2 Activate Installer on the user interface. See the installer reference guide
for the correct procedure.
3 Go to Actuator test run via the user interface.
4 Activate backup heater: step 1.

Daikin EBLA16DA3V3 Specifications

General

Brand	Daikin
Model	EBLA16DA3V3
Category	Heat Pump
Language	English