Daikin EGSQH10S18AA9W, Installation Manual

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4 Installation
Installation manual
7
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351747-1F – 2016.06
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:
a
b
c
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
"5.2.2 Quick wizard:
Standard" on page 15 .
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
1 Connect the unit to the field supplied brine filling system.
2 Position the 3‑way valve correctly.
3 Fill the circuit with brine until the manometer indicates a
pressure of ±2.0 bar.
a
a Brine manometer
4 Purge as much air as possible from the brine circuit. For
instructions, see
"6 Commissioning" on page 20 .
5 Return the 3‑way valve to its original position.
4.3.3 To insulate the brine piping
The piping in the complete brine circuit MUST be insulated to
prevent reduction of the heating capacity.