Mitsubishi Heavy Industries FDCW60VNX-W, Руководство по установке

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40
Commissioning and adjusting
CAUTION
Open the hot water intake valves before heating the system
up for the first time or after a longer break in its operation
in order to check whether the storage tank is filled with
water and the cut-off valve at the cold water inlet is not
closed.
Climate system
1. Open the vent at the top of the heating system.
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into all circuits.
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water.
4. Close the vent when water comes out continuously without
bubbles.
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pressure reaches the required value (2 bar is recommended).
6. Start the circulation pump of the heating system, and open
the vent from time to time and release the all remaining air
in the heating system.
7. Open safety valve until the pressure of the heating system
drops down to about 1 bar. If the pressure drops below 1 bar
during venting, add additional water in the circuit.
Inspection of installation
Current regulations require that the climate system is inspected
before it is commissioned. The inspection must be carried out
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replace any part of the system without carrying out new
checks.
Commissioning and adjusting
Preparations
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The signal cable is connected between indoor unit and
outdoor unit as well as indoor unit and controller according
to the instruction.
The power cable is connected to indoor unit, outdoor unit
and controller according to the instruction.
Operation switch in controller is in the position .
The service valves on outdoor unit (QM35 and QM36) are
open.
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Temperature limiter and electrical switch are not tripped.
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There are no leaks on the water pipe.
Filling and venting
Hot water tank
1. Open the hot water tap as well as venting valve if applicable,
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the hot water tap, and then close the hot water tap and
venting valve.
3. Fill the water heater coil in the tank. See Climate system for
details.
After the installation and levelling the tank, follow the
procedure below (for the connector pipe symbols, refer to page
1. Remove protecting plugs from the connector pipes
2. Connect the hot water intake line (N).
3.
Connect the cold water supply line together with the
required safety valves (G).
4. If the system has the hot water circulati on system, connect
it to the connector pipe (L). Otherwise, plug the pipe.
5. Connect the supply (J) and return (H) of the heating medium
to the coil.
CAUTION
If there is an electric heating module installed in the
storage tank, fill the tank with water before connecting
it to the electrical installation.