Daikin Altherma 3 R W Installer's Reference Manual page 101

ERGA04~08EA + EHBH/X04+08EF
Daikin Altherma 3 R W
4P629085-1B – 2021.11
▪ Water flow. You can find the minimum required water flow for indoor unit
operation in the following table. In all cases, this flow needs to be guaranteed.
When the flow is lower, the indoor unit will stop operation and display error 7H.
Minimum required flow rate
12 l/min
▪ Field supply components – Water. Only use materials that are compatible with
water used in the system and with the materials used in the indoor unit.
▪ Field supply components – Water pressure and temperature. Check that all
components in the field piping can withstand the water pressure and water
temperature.
▪ Water pressure – Space heating/cooling circuit. The maximum water pressure is
3 bar. Provide adequate safeguards in the water circuit to ensure that the
maximum pressure is NOT exceeded. The minimum water pressure to operate is
1 bar.
▪ Water temperature. All installed piping and piping accessories (valve,
connections,...) MUST withstand the following temperatures:
INFORMATION
The following illustration is an example and might NOT match your system layout.
T
a b c d e
a Outdoor unit
b Indoor unit
c Heat exchanger
d Backup heater
e Pump
f Shut-off valve
g Motorised 3-way valve (supplied with the domestic hot water tank)
h Motorised 2-way valve (field supply)
i Collector
j Domestic hot water tank
k Heat exchanger coil
l Booster heater
FCU1...3 Fan coil unit (optional) (field supply)
FHL1...3 Floor heating loop (field supply)
T Room thermostat (optional) (field supply)
65°C
i
i
h
f g
FCU1
i
M
M
i
f
FHL1
l k
89°C
j
8 Piping installation
|
FCU2
FCU3
FHL2
FHL3
Installer reference guide
101