Daikin ALTHERMA Installer's Reference Guide

15 Technical data
Installer reference guide
81
ERLQ004~008CAV3 + EHBH/X04+08CA
Daikin Altherma - Low Temperature Split
4P313774-1C – 2012.11
15.4 Functional diagrams
15.4.1 Functional diagram: Outdoor unit
M
a c b d e f e g
n l k i h
m j
a Heat exchanger thermistor
b Fan motor
c Heat exchanger
d Air thermistor
e Filter
f Electronic expansion valve
g Liquid stop valve
h Gas stop valve with service port
i Accumulator
j Pressure sensor
k Compressor
l Discharge thermistor
m High pressure switch
n 4-way valve (ON=heating)
Heating
Cooling
15.4.2 Functional diagram: Indoor unit
R4T
R3T
R2TR1T
m h c klf
ei
a b jg
d
a Outdoor unit
b Indoor unit
c Expansion vessel
d Manometer
e Air purge valve
f Pressure relief valve
g Backup heater
h Pump
i Flow sensor
j Shut-off valve water outlet with drain and fill valve
(field installation)
k Shut-off valve water inlet with drain valve (field
installation)
l Filter
m Heat exchanger
R1T Outlet water heat exchanger thermistor
R2T Outlet water backup heater thermistor
R3T Refrigerant liquid side thermistor
R4T Inlet water thermistor
Heating
Cooling

Daikin ALTHERMA Specifications

General

Type	Air-to-Water Heat Pump
Energy Efficiency	A+++ (Heating)
Coefficient of Performance (COP)	5.0
Refrigerant	R-32
Operating Temperature Range (Cooling)	10°C
Sound Power Level	65 dB(A)
Heating Capacity	4 kW to 16 kW (depending on model)