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8. OUTDOOR UNIT INSTALLATION MANUAL
Engineering Data book
CAUTION
1. Do not put the spanner on the cap or cover.
The valve may be broken.
2. If applying excessive torque, the nut may be
broken according to some installation
conditions.
• After the installation work, be sure to check gas leak
of connecting part of the pipes with nitrogen.
• Pressure of R410A is higher than that of R22
(Approx. 1.6 times).
Therefore, using a torque wrench, tighten the flare
pipe connecting sections which connect the hydro/
outdoor units at the specified tightening torque.
Incomplete connections may cause not only a gas
leak, but also a trouble of the refrigeration cycle.
Refrigerant Pipe Length
Refrigeration pipe
H: max. ±30 m (above/below)
L: max. 30 m, min. 3 m
Cover
NO GOOD
Cap
Do not apply refrigerating machine oil to the
flared surface.
H
L
Hydro Unit
Outdoor unit
30 m chargeless
13-EN
Summary of Contents for ESTIA HWS-1102H-E
Page 3: ...2 1 INTRODUCTION ...
Page 7: ...6 2 SYSTEM OVERVIEW ...
Page 10: ...9 3 SYSTEM SPECIFICATION ...
Page 12: ...11 4 HYDRO UNIT ...
Page 44: ...43 5 OUTDOOR UNIT ...
Page 57: ...56 6 HOT WATER CYLINDER ...
Page 63: ...62 7 HYDRO UNIT INSTALLATION MANUAL ...
Page 107: ...105 8 OUTDOOR UNIT INSTALLATION MANUAL ...
Page 131: ...129 9 OWNER S MANUAL ...
Page 146: ...Air to Water Heat Pump Engineering Data Book Aug 2009 ...