ESIE15-08B
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Part 2. Troubleshooting
4. Component checklist - Water Circuit
19/07/16
Page 73
Daikin Altherma Monobloc CA
4.4. Water pump M1P (Main Supply Pump)
1.
Switch off the Daikin Altherma Monobloc CA via the user interface.
2.
Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker.
3.
Remove the hydrobox front plate, refer to
"Removing the hydrobox front plate" on page 111
4.
Drain the water/glycol circuit, refer to the Installer Reference Guide.
5.
Remove the 4 screws that fix the pump motor to the pump house.
6.
Separate the pump motor from the pump house.
7.
Inspect the rotor and check that it rotates smoothly.
8.
After water pump assembly and filling the water/glycol circuit, check pump for leaks.
-
Replace the seal if the water pump leaks.
1.
Switch off the Daikin Altherma Monobloc CA via the user interface.
2.
Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker.
3.
Remove the hydrobox top plate assembly, refer to
"Removing the hydrobox top plate assembly" on page 110
4.
Remove the hydrobox front plate, refer to
"Removing the hydrobox front plate" on page 111
5.
Power the Daikin Altherma Monobloc CA.
6.
Activate “Installer level” on the user interface, refer to “Installer Level Settings” in the Installer Reference Guide to access the
Technical specification
Description
The water pump M1P is an inverter driven, variable speed pump (inverter signal
from PCB A1P, connector X25A).
The water pump M1P circulates the water in the
water circuit.
Location
Piping diagram
Switch box
Unit
Check procedure
Mechanical check
Electrical check
W
ARNING
: R
ISK
OF
F
IRE
•
When reconnecting a connector to the PCB, do not apply force or damage the connector or the connector pins on
the PCB.
TR1
X5M
X4M
A2P
X3M
X7M
A1P
PCB3
X6Y
X25A
X16A