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42PQV...S/38VBH...S
GB - 11
E N G L I S H
Tightening torque
Valve
Flare nut
Valve cap
Pressure port cap Valve needle
Pressure port
Wrench mm
Nm
Wrench mm Nm
Wrench mm
Nm
Wrench mm
Nm
Wrench mm
Nm
1/4”
17
18
22
20
-
-
Allen(hex.)4
9
-
0.34
3/8”
22
42
22
20
17
16-18
Allen(hex.)4
9
-
0.34
1/2”
27
55
25
40
17
16-18
Allen(hex.)4
13
-
0.34
Flaring the ends of the tubing
Remove protective caps from copper tube ends.
Position tube end downward, cut the tube to the requested length
and remove the burrs with a reamer.
Do not leave system open to atmosphere any longer than minimum
required for installation.
Oil in the compressor is extremely susceptible to moisture
absorption.
Always keep ends of tubing sealed during installation.
Remove flare nuts from the unit connections and place them on the
tube end.
Flare the tube with the flaring tool.
Flare end must not have any burrs or imperfections.
The length of the flared walls must be uniform.
Refrigerant connections
L
L
Lubricate the tube end and thread of the flare fitting with anti-
freeze oil.
Finger-tighten the fitting several turns, then tighten it fully with
two wrenches by applying the tightening torque indicated in the
table.
Adjustable wrench or torque wrench
Outdoor end
Indoor end
IMPORTANT:
Open the three way valves only after fitting has been
tighten.
Connection to unit
Insufficient tightening torque will cause gas leaks.
Overtightening the fittings will damage the tube flaring and
cause gas leaks.
The unit can be installed:
on the floor;
on the wall using the bracket kit.
Connect tubing in accordance with the limits shown on Table II
(Connections).
Finger-tighten the fitting several turns, then tighten it with a
wrench by applying the tightening torque indicated in the table.
3
1
2