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Piping installation
Installer reference guide
63
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1A – 2020.05
▪
ALWAYS make sure to secure the stop valve with a spanner, then loosen or
tighten the flare nut with a torque wrench. Do NOT place the spanner on the
stem cap, as this could cause a refrigerant leak.
a
b
a
Spanner
b
Torque wrench
▪
When it is expected that the operating pressure will be low (e.g. when cooling
will be performed while the outside air temperature is low), sufficiently seal the
flare nut in the stop valve on the gas line with silicon sealant to prevent freezing.
Silicon sealant, make sure there is no gap.
To open/close the stop valve
1
Remove the stop valve cover.
2
Insert a hexagon wrench (liquid side: 4 mm, gas side: 4 mm) into the valve
stem and turn the valve stem:
Counterclockwise to open
Clockwise to close
3
When the stop valve CANNOT be turned any further, stop turning.
4
Install the stop valve cover.
Result:
The valve is now open/closed.
To handle the stem cap
▪
The stem cap is sealed where indicated with the arrow. Do NOT damage it.
▪
After handling the stop valve, tighten the stem cap, and check for refrigerant
leaks.
Item
Tightening torque (N∙m)
Stem cap, liquid side
14.2~17.2
Stem cap, gas side
22~28
To handle the service cap
▪
ALWAYS use a charge hose equipped with a valve depressor pin, since the service
port is a Schrader type valve.
Summary of Contents for ERLA03DAV3
Page 1: ...Installer reference guide Daikin Altherma 3 R F ERLA03DAV3 EHFZ03S18DJ3V...
Page 182: ...1 7 Field settings table 6 8 2 ID9E51 Applicable units EHFZ03S18DJ3V Notes 4P596829 1 2019 10...
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Page 192: ...4P596821 1A 2020 05 Copyright 2019 Daikin Verantwortung f r Energie und Umwelt...