Daikin Altherma EBLQ011CA3V3 - Booster Heater Thermal Protector; Checking Procedures; Repair Procedures; Compressor

2 Components
Service manual
50
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
2.7 Booster heater thermal protector
2.7.1 Checking procedures
INFORMATION
It is recommended to perform the checks in the listed
order.
To perform a mechanical check of the booster
heater thermal protector
1 For the correct procedure, see the installation manual of the
water tank.
Does the booster heater
thermal protector trip at
approximately 92°C?
Action
Yes Perform an electrical check of the
booster heater thermal protector,
see "2.7.1Checking
procedures"on page50.
No Replace the booster heater
thermal protector, see
"2.7.2Repair procedures"on
page50.
To perform an electrical check of the booster
heater thermal protector
1 For the correct procedure, see the installation manual of the
water tank.
All measured circuit breakers
are closed?
Action
Yes Booster heater thermal protector
is OK. Return to the
troubleshooting of the specific
error and continue with the next
procedure.
No Replace the booster heater
thermal protector, see
"2.7.2Repair procedures"on
page50.
2.7.2 Repair procedures
To remove the booster heater thermal protector
1 For the correct procedure, see the installation manual of the
water tank.
2 To install the booster heater thermal protector, see
"2.7.2Repair procedures"on page50.
To install the booster heater thermal protector
1 For the correct procedure, see the installation manual of the
water tank.
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.
2.8 Compressor
2.8.1 Checking procedures
INFORMATION
It is recommended to perform the checks in the listed
order.
To perform a mechanical check of the compressor
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.19 Plate
work"on page77.
1 Open the compressor insulation.
2 Check the compressor dampers and piping for any damage.
a
a
a Damper
INFORMATION
The compressor dampers may look different.
Compressor dampers and
piping are in a good
condition?
Action
Yes Perform an electrical check of the
compressor, see "2.8.1Checking
procedures"on page50.
No Replace the compressor, see
"2.8.2Repair procedures"on
page51.
To perform an electrical check of the compressor
1 First perform a mechanical check of the compressor, see
"2.8.1Checking procedures"on page50.
2 Open the compressor insulation.
WARNING
The smoothing capacitor MUST discharge below 10VDC
before disconnecting the Faston connectors from the
compressor wiring terminals. Risk of electrocution.
3 Remove the cover of the compressor wire terminals.
a Compressor wire terminals cover
4 Disconnect the Faston connectors from the compressor wire
terminals U, V and W.