Connecting The Brine Piping; To Connect The Brine Piping; To Fill The Brine Circuit; To Insulate The Brine Piping - Daikin EGSQH10S18AA9W Installation Manual

NOTICE
Check if the front support bolts remain levelled and are
NOT stressed. The support feet from outer (b) and inner
frame (c) MUST be adjusted so that those front bolts
remain level. Do NOT adjust support foot (a)!
Bottom view:
Side view:
INFORMATION
To check if the front support bolts are not stressed, loosen
them partly and fix them again afterwards.
4.3

Connecting the brine piping

4.3.1

To connect the brine piping

a b
a Brine out
b Brine in
NOTICE
To facilitate service and maintenance, it is recommended
to install shut-off valves as close as possible to the inlet
and outlet of the unit.
4.3.2

To fill the brine circuit

WARNING
Before, during and after filling carefully check the brine
circuit for leakage.
WARNING
Temperature of the fluid running through the evaporator
can become negative. It MUST be protected against
freezing. Refer to setting [A‑04] in
Standard" on page 15.
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351747-1F – 2016.06
1 Connect the unit to the field supplied brine filling system.
2 Position the 3‑way valve correctly.
c
b
a
3 Fill the circuit with brine until the manometer indicates a
4 Purge as much air as possible from the brine circuit. For
5 Return the 3‑way valve to its original position.
4.3.3
The piping in the complete brine circuit MUST be insulated to
prevent reduction of the heating capacity.
"5.2.2 Quick wizard:
INFORMATION
The materials used in the units brine circuit are chemically
resistant to the following anti-freeze fluids:
▪ 40 mass% propylene glycol
▪ 29 mass% ethanol
pressure of ±2.0 bar.
a
a Brine manometer
instructions, see "6 Commissioning" on

To insulate the brine piping

4 Installation
page 20.
Installation manual
7