14 Technical data
Installer reference guide
70
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351748-1D – 2016.02
14.4
Piping diagram
14.4.1
Piping diagram: Indoor unit
Description sensors
LEGEND:
t >
R2T
t >
R3T
t >
R2T
t >
R1T
t >
R4T
M
PUMP
t >
R5T
t >
R
5T
t >
R4T
t >
R3T
t >
R6T
P
P
(*)
(*)
(*)
(*)
(*)
NRV
3D081374-1A page 1
(*)
PLATE
HEAT
EXCHANGER
(Evaporator)
PLATE
HEAT
EXCHANGER
(Condenser)
high
pressure
switch
high
pressure
sensor
COMPRESSOR
MUFFLER
Depicted is example, for complete installation requirements, refer to installation manual
To Space Heating
Circuit
EXPANSION
VESSEL
BLOW
OFF
SAFETY
VALVE
FIELD SUPPLIED
FIELD SUPPLIED
To DHW circuit
SHUT
OFF
VALVE
SHUT
OFF
VALVE
SHUT
OFF
VALVE
SHUT
OFF
VALVE
3-WAY
VALVE
indoor
BACK UP
HEATER
Water side
Refrigerant
PRESSURE
GAUGE
SAFETY
VALVE
BLOW
OFF
indoor
check
valve
Outlet Water Temperature Sensor (LWC)
After BUH Temperature Sensor
Refrigerant Liquid Temperature Sensor
Inlet Water Temperature Sensor (EWC)
DHW Tank Temperature Sensor
Ambient Air Sensor
discharge sensor
suction sensor
brine entering water
brine leaving water
2 phase sensor (Tx)
R1T in
R2T in
R3T in
R4T in
R5T in
R1T out
R2T out
R3T out
R4T out
R5T out
R6T out
CHECK VALVE
FLARE CONN.
SCREW CONN.
FLANGE CONN.
PINCHED PIPE
SPINNED PIPE
BRAZED CONN.
QUICK COUPLING
flow
sensor
FIELD SUPPLIED
FILLING VALVE
KIT
FIELD SUPPLIED
drain
drain
service port
service port
outdoor
MOTOR
OPERATED
VALVE indoor
heat sink
inverter PCB
FILTER
indoor
AIR
PURGE
FIELD SUPPLIED
FILL
VALVE
EXPANSION
VESSEL
EXPANSION
VESSEL
DHW
TANK
in
do
or
FILTER
drain
To ground loop
Brine side
INSIDE OF UNIT -FACTORY INSTALLED
PRESSURE
GAUGE
SAFETY
VALVE
BLOW
OFF
flow
switch
drain
FILTER
outdoor
outdoor
PUMP