Distribution Boxes; Cooling Sections - Nibe S1255PC Installer Manual

Distribution boxes

AA8
-X27
3 NO
2 O
1 NC
AUX-RELAY
K10
AA2
FQ10
FQ10-S2
ELECTRICAL COMPONENTS
AA2 Base card
AA8 Electrical anode board
FQ10 Temperature limiter
FQ10-S2 Reset button for temperature limiter
1
Only heat pump with enamelled vessel.

Cooling sections

BT12
EP6
BT3
GP1
GP2
QM2
EP2
QA40
BT17
CA1
EP6
RA1
BT15
BP1 XL21
NIBE S1255PC
1
RF2
AA3
BT11
BT10
QN18
QM1
EP1
BT14
GQ10
HS1
BP2
XL20
QN1
EB10
PIPE CONNECTIONS
XL20 Service connection, high pressure
XL21 Service connection, low pressure
HVAC COMPONENTS
GP1 Circulation pump
GP2 Brine pump
QM1 Drainage, climate system
QM2 Draining, brine side
QN18 Mixing valve, cooling
SENSORS ETC.
BP1 High pressure pressostat
BP2 Low pressure pressostat
BT3 Temperature sensors, heating medium return
BT10 Temperature sensor, brine in
BT11 Temperature sensor, brine out
BT12 Temperature sensor, condenser supply line
BT14 Temperature sensor, hot gas
BT15 Temperature sensor, fluid pipe
BT17 Temperature sensor, suction gas
ELECTRICAL COMPONENTS
AA3 Input circuit board
EB10 Compressor heater
QA40 Inverter
RF2 EMC-filter
COOLING COMPONENTS
EP1 Evaporator
EP2 Condenser
EP6 Heat exchanger, cooling
GQ10 Compressor
HS1 Drying filter
QN1 Expansion valve
Chapter 3 | The heat pump design 11