Waterstage WO A060LDC Series, Инструкция по установке и эксплуатации

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2 .7 .4 Pump down operation (Refrigerant collecting
operation) outdoor unit
Perform the following procedures to collect the
refrigerant.
-
1
- Turn OFF the start/stop switch
(ref. 3 , figure 7, page 10 ). Disconnect the power
supply.
-
2
- Remove the front panel. Open the power control
box. Then turn ON the DIP SW1 on the interface
board,
-
3
- Reconnect the power supply. Turn ON the start/
stop switch.(Green and Red LED on the board start
flashing ; 1 sec. on / 1 sec. off repeated). The outdoor
unit begins cooling operation about 3 minutes after
switching ON
-
4
-
Rapidly
: Set the parameter
7700
(
Relay output
QX1 ) to
ON
. => The pump works normally.
Reminder: Press OK Hold on the key for 3s
and select the level of access* used with the aid
of the knob Confirm with the key
OK
* Choose “Specialist” level / Inputs / outputs test.
-
5
- Close the liquid valve on the outdoor unit 30 s
maximum after operation starts..
-
6
- Close the gas valve on the outdoor unit as soon as
the pressure is lower 0,02 bar relative reading on the
Manifold or 1-2 minutes after closing the liquid valve,
while the outdoor unit keeps running.
-
7
- Disconnect the power supply.
- 8 - The refrigerant collecting operation is over.
Remarks:
- The pump down operation cannot be activated even if
DIP SW1
is changed while heat pump's power is
ON
- Do not forget to turn back
DIP SW1
on the interface
board to OFF , after the pump down operation has
been completed.
- Select the "AUTO" heating mode.
- When the pump down operation is repeated,
temporarily turn OFF the start/stop switch after
opening the closed valves (both liquid and gas).
R410A
Liquid
Gas
figure 20 - "Gas" bottle R410A
DIP SW
Interface card
LED2
(green)
LED1
(red)
OFF ON
figure 21 - Location of DIP switches and diodes
on the hydraulic unit interface card
- The charge must be introduced after creating the
vacuum and before the hydraulic module is filled with
gas, as follows :
- Disconnect the vacuum pump (yellow hose) and
connect a bottle of R410A instead in the fluid
extraction position
- Open the bottle’s valve.
- Bleed the yellow hose by loosening it slightly on the
Manifold side.
- Place the bottle on scales with a minimum accuracy of
10g. Note the weight.
- Carefully open the blue valve slightly and check the
value shown on the scales.
- As soon as the value displayed has dropped by the
value for the calculated additional charge, close the
bottle and disconnect it.
- Then rapidly disconnect the hose connected to the
appliance.
- Proceed to fill the hydraulic module with gas.
"
Warning
• Only use R410A !
• Only use tools suitable for R410A (set of manometers).
• Always charge in the fluid phase.
• Never exceed the length or the maximum difference in level.
Installation and operating manual "1585 - EN"
- 23 -
Air to Water Heat Pump (Split integrated DHW type)