© JBG-HT (v.2.0)
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INSTRUCTION MANUAL
– HEAT PUMP
4.9.5.
Filling up and venting the system
Fill the system with heating water. Slowly increase the filling pressure until the desired working pressure is
reached. The working pressure should be between 1.5 and 2 bar. For filling, use a suitable, intended for this
purpose cart with a tank and pump, which allows you to properly vent the installation. During filling, control the
vent valves. When venting, check the pressure in the system. If the pressure drops, top up the water system.
After filling and venting, activate the heating circuit pump on the controller.
4.9.6.
Installing the DHW sensor
An important step that goes into the first start-up procedure is to check the correctness of operation of the heat
pump sensors. In a configuration with a DHW tank, one such sensor is the probe that measures the temperature
of domestic hot water. It is important to install this sensor correctly. It should be placed halfway up the tank,
inserting it inside the tank through the designated entrance. The location of the sensor is presented in Figure 36.
1
Tank
2
Coli
3
Cold water
4
DHW supply
5
temperature sensor
6
DHW circulation
7
Anode
8
Drain valve
Fig. 36. Location of the DHW sensor
4.9.7.
Initial startup
The first start-up of the installation is performed by an authorized Installer. During the first start-up a
PROTOCOL
OF ACCEPTANCE / START-UP OF HEAT PUMP
is drawn up.
Scope of services for the first start-up performed by an authorized Installer:
1 ) Checking fan operation.
2 ) Checking the quality and tightness of the water supply system.
3 ) Checking the supply voltage of the unit.
4 ) Ensure that the unit is properly grounded.
5 ) Checking the correctness of operation of electrical safety devices.
6 ) Checking the quality of electrical connections.
7 ) Check for positive pressures in the system to verify that the system has been filled with refrigerant.
8 ) Check water and air temperatures to verify proper operation of heat pump sensors.
9 ) Turning on the heat pump.
10 ) Control of the obtained operating parameters of the heat pump.
11 ) Instruct the user on the basic operation of the heat pump.
Summary of Contents for ZHHS-01-10K-R290-V5-M
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