Piping Diagram; Piping Diagram: Indoor Unit - Daikin EGSQH10S18AA9W Installer's Reference Manual

14 Technical data
14.4

Piping diagram

14.4.1

Piping diagram: Indoor unit

Brine side
INSIDE OF UNIT -FACTORY INST ALLED
PRESSURE
SAFET Y
GAUGE
VALVE
(*)
FIELD SUPPLIED
BLOW
SHUT
OFF
OFF
VALVE
flow
switch
FILT ER
drain
FILLING VALVE
KIT
EXPANSION
VESSEL
(*)
FIELD SUPPLIED
SHUT
OFF
VALVE
drain
To ground loop
LEGEND:
CHECK VALVE
FLARE CONN.
SPINNED PIPE
PINCHED PIPE
Installer reference guide
70
Refrigerant
high high
R5T
R3T
pressure
pressure
outdoor
outdoor R2T
sensor
COMPRESSOR switch
PUMP
t > t >
t >
P P
PLAT E
HEAT
EXCHANGER
(Evaporator)
service port service port
MOT OR
OPERAT ED
R4T
R3T
R6T
outdoor VALVE
indoor
M
t > t >
t >
FILT ER
SCREW CONN.
QUICK COUPLING
FLANGE CONN.
BRAZED CONN.
PRESSURE
SAFET Y
GAUGE
VALVE
BLOW
OFF
R1T
indoor
check
t >
valve
BACK UP
HEAT ER
MUFFLER
PUMP
EXPANSION
VESSEL
PLAT E
HEAT
EXCHANGER
(Condenser)
AIR
PURGE
R4T
indoor
t >
heat sink
inverter PCB
drain
(*) Depicted is example, for complete installation requirements, refer to installation manual
Descriptio n senso rs
R1 T in Outlet Water Temperature Senso r (LWC)
R2T in A fter B UH Temperature Senso r
R3T in Refrigerant Liquid Temperature Senso r
R4T in Inlet Water Temperature Senso r (EWC)
R5T in DHW Tank Temperature Senso r
R1 T o ut A mbient A ir Senso r
R2T o ut discharge senso r
R3T o ut suctio n senso r
R4T o ut 2 phase senso r (Tx)
R5T o ut brine entering water
R6T o ut brine leaving water
Water side
To DHW circuit
(*)
FIELD SUPPLIED
R2T
SHUT
indoor
3-WAY
OFF
VALVE
t > VALVE
flow
sensor
DHW
T ANK
(*)
FIELD SUPPLIED
SHUT
OFF
drain
VALVE
FILT ER FILL
VALVE
To Space Heating
3D081374-1A page 1
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351748-1D – 2016.02
(*)
FIELD SUPPLIED
SAFET Y
VALVE
NRV
BLOW
OFF
EXPANSION
VESSEL
Circuit