Toshiba HWS-802XWHM3-E Engineering Data page 109

Air to water heat pump, hydro & outdoor unit, hot water cylinder
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8. OUTDOOR UNIT INSTALLATION MANUAL
Please read this Installation Manual carefully before installing the Air to Water Heat Pump.
• This Manual describes the installation method of the outdoor unit.
• For installation of the hydro unit, follow the Installation Manual attached to the hydro unit.
This Air to Water Heat Pump is a new type which adopts a new refrigerant HFC (R410A) instead of the
conventional refrigerant R22 in order to prevent destruction of the ozone layer.
Contents
1 ACCESSORY PARTS AND REFRIGERANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
2 PRECAUTIONS FOR SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
4 SELECTION OF INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5 REFRIGERANT PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
6 AIR PURGING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
7 ELECTRICAL WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
8 EARTHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9 FINISHING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
10 TEST RUN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
11 ANNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
12 FUNCTIONS TO BE IMPLEMENTED LOCALLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
13 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
14 APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
1-EN
ADOPTION OF NEW REFRIGERANT
- 107 -
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