Estia HWS-1501CSHM3-E, Руководство по установке

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AIR TO WATER HEAT PUMP SYSTEM INSTALLATION AND SERVICE MANUAL
7
EN
The cable to the thermal sensor must be routed through the left hand cable gland
provided and the outer sheath of the cable firmly secured by tightening the screw on
the cable gland. The sensor cable should be 0.75mm
2
2 core + shield (ground) with
a maximum current rating of 100mA. The cable should not be longer than 5 metres.
4.7 Replace the terminal cover before operating.
4.8 DO NOT heat the unit until the water cylinder has been completely filled with
water.
4.9 Thermal control of the water cylinder is done by the Hydro Unit controls. Refer to
the Air to Water Heat Pump Installation Manual for instructions for setting the hot
water storage temperature.
4.10 The electrical supply from the Air to Water Heat Pump to the cylinder heater
incorporates an over-temperature thermal cut-out that will switch off the cylinder
heater in the event of a thermal control failure. DO NOT bypass the thermal
cut-out in any circumstances.
5.0 COMMISSIONING
WARNING: Water that is left standing in a stainless steel water cylinder for long
periods without draw off will become de-oxygenated and potentially corrode
the vessel material. If the installation is to be left unused following installation
and commissioning the water cylinder should be drained or regularly (once per
week) flushed through with fresh mains water.
When placing the unit into service the procedure for filling the unit and the
system checks detailed below should be repeated.
5.1 DO NOT switch on the Air to Water Heat Pump until the unit has been filled with
water and checked for leaks.
5.2 Check that all installation, electrical and discharge pipe requirements have been
met.
5.3 Check that all water and electrical connections are correctly made and are tight.
5.4 Open a hot tap supplied by the unit, turn on the cold water supply to the unit.
5.5 Allow the unit to fill and leave the hot tap running for a short while to purge any
air and flush out the pipework. Close the hot tap.
5.6 Open successive hot taps to purge any air from the system.
5.7 With all hot taps closed, check the system for water leaks and rectify as necessary.
3
3
7
2
1
6 6
5
4 4
1 2
A B
TBO6 (TTW)
TBO3 (230V)
1 TO HYDRO UNIT
2 SENSOR
3 GREEN/YELLOW
4 BLUE
5 DOUBLE POLE THERMAL
CUT-OUT
6 BROWN
7 230V~ MAINS SUPPLY
FROM HYDRO UNIT.
1.5mm
2
MIN. CABLE SIZE
Diagram 3