21
- In multi-zone installations managed by thermostatic or similar valves, some method must be
provided to maintain the minimum flow rates indicated above, even when all zones are closed
(bypass valve, etc.).
9.5.1
Installing a DHW tank
The
DUAL CLIMA
heat pump may include (optionally) in its installation a tank for the production of
domestic hot water. In the offering of aerothermal accessories,
DOMUSA TEKNIK
offers a wide
range of DHW tanks specially designed to be combined with the
DUAL CLIMA
heat pumps (
Sanit
HE
,
BT-Trio
and
BT-Duo HE
lines). The hydraulic installation of the tank must be made by qualified
personnel, subject to the applicable installation legislation and the attached instructions of the
tank.
To combine an DHW tank with the heat pump, insert the
DHW tank sensor
supplied with it into
the tank sensor housing. In addition, a 3-way diverter valve (
G1
) must be installed between the
external machine and the DHW + heating/cooling installation, by means of what, the electronic
controller diverts the water from the heat pump to the DHW production or to the Heating/Cooling
installation, depending on whether there is demand for DHW.
Dc:
Dual Clima
heat pump.
Ac:
Sanit HE tank.
Sa:
DHW tank sensor.
G1:
3-way diverter valve.
E1:
DHW backup resistor.
Ic:
Heating/Cooling installation.
In addition, optionally, an (
E1
) can be installed, by means of what DHW temperatures higher than
50 ºC can be obtained. To perform the electrical installation of the DHW tank sensor, the 3-way
valve (
G1
), and the auxiliary electric heater (
E1
), read the
"Electrical Connections"
section of this
manual carefully.
9.5.2
Filling the installation
The hydraulic installation must include a filling valve, air vent valves and the necessary hydraulic
components for correctly filling it.
To fill the heat pump, open the filling valve until the pressure gauge
located on the back of the machine shows a pressure of 1~1.5 bars. The
heat pump has a manual air vent on top of the heat exchanger's
(condenser) flow tube. Open it during the filling process and wait for the
water to begin flowing out. The air should also be bled from the rest of the
installation using the air vent valves provided. Filling should be performed
slowly, thus helping the evacuation of air from the water circuit. Close the
filling valve after filling. To comfortably access the heat pump air vent
valve, open the top cover and side panel of the heat pump.
IMPORTANT: Switching on the heat pump with no water inside could result in serious
damages.
Air Vent
Summary of Contents for DUAL CLIMA 11
Page 1: ...INSTALLATION AND OPERATING INSTRUCTIONS DUAL CLIMA ...
Page 39: ...37 15 2 Dual Clima 8 ...
Page 40: ...DUAL CLIMA 38 15 3 Dual Clima 11 ...
Page 41: ...39 15 4 Dual Clima 16 ...
Page 46: ...DUAL CLIMA 44 NOTE ...
Page 47: ...45 NOTE ...
