Toshiba HWS-803XWHM3-E Data Book page 87

7. HYDRO 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 hydro unit.
• For installation of the outdoor unit, follow the Installation Manual attached to the outdoor 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 GENERAL INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
2 ACCESSORY PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
3 PREPARATIONS FOR INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
4 PRECAUTIONS FOR SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
5 EXAMPLE OF HYDRO UNIT INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
6 MAIN COMPONENTS OF HYDRO UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
7 HYDRO UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
8 START UP AND CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
9 TEST RUN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
10 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
11 SENSOR TEMPERATURE MONITORING FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 124
12 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
ADOPTION OF NEW REFRIGERANT
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Engineering Data Book
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