Checking And Starting Up The Unit - CLIMAVENETA WWR MTD - MTD/s, BWR MTD - MTD/s Installation And User Manual

Reverse-cycle water/water or ground source heat pumps installation, user, maintenance manual
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CHECKING AND STARTING UP THE UNIT

PREPARING FOR FIRST START UP or restarting
after shutting down for long periods.
The unit must be started up for the first time by the Techni-
cal Service:
Before starting up the units, make sure that:
- All safety conditions have been respected
- The unit is adequately fixed to the surface it rests on;
- Functional distances have been respected;
- Water connections have been carried out as indicated in
the instruction manual;
- The water circuit is filled and vented;
- The water valves are open;
- Electrical connections have been carried out correctly
- Voltage is within a tolerance of 10% of the rated voltage
for the unit;
- The unit is correctly earthed
- All electrical connections are tight and all water connec-
tions have been carried out correctly.
The unit must be started up for the first time with standard
settings. Set Point values may be modified only after testing
has been completed.
Before starting up, power up the unit for at least two hours
by switching QF1 and QS1 to ON (see "wiring diagram" and
the control panel in standby) to allow the oil in the compres-
sor sump to heat up.
ACCENSIONE E SPEGNIMENTO DELL'UNITÁ
- Move the contact on the on/off device SA1
ON
(if featured) to ON.
- Switch the remote keypad "A5" (if featured)
OFF
ON.
- The COOLING and HEATING are ACTI-
VATED and DEACTIVATED on the control
panel "HSW12" or the remote keypad "A5"
if featured.
During this phase, if the following indications appear on
the display, follow the instructions:
- ER20 check the water flow-rate and the connection (ter-
minals 20-21 and 22-23) of the flow switch/switches.
- ER01 (three-phase heat pumps only): check the power
supply connection and if necessary reverse two phas-
es.
At every change of season, make sure the operating
conditions fall within the limits specified.
Make sure the current input of the compressor is less
than the maximum shown in the table of technical speci-
fications.
Make sure the voltage is within the established limits and
that, for three phase units, the unbalance between the
phases is less than 3%.
Check that the cover is closed again following the setting
procedure.
34
WWR MTD - BWR MTD GB 03/2010
STARTING UP FOR THE FIRST TIME (after two hours)
Before starting the chiller:
ON
- Make sure the switch QF1 is in the OFF
position.
OFF
- Make sure the contact of the on/off device
SA1 (see the wiring diagram) is open (if
featured).
- Make sure the remote keypad "A5" is OFF (if featured).
- Close the door of the electrical panel.
ON
- Move the main unit switch QS1 to the ON
position.
OFF
- Move the switch QF1 (outside the unit) to
"ON".
- The icon with the off symbol (symbol
control panel, indicating power is connected.
For the position of internal components, see the dia-
grams.
2
3
To access the control panel, open the door:
- remove the screw 1;
- press the points 2 simultaneously and lift the door 3.
A
) lights up on the
1
2
e s c
s e t
3

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