Riello 20191845, Руководство пользователя

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80
ENGLISH
2 GENERAL INTRODUCTION
These units are used for both heating and cooling applications and domestic hot water tanks.They can be combined with fan coil
units, floor heating applications, low temperature high efficiency radiators, domestic hot water tanks and solar kits, which are all
field supplied.
A wired controller is supplied with the unit .
If you add an optional backup heater unit, the backup heater can increase the heating capacity during cold outdoor temperature.
The backup heater also serves as a backup in case of malfunctioning and for frozen protection of the outside water piping during
winter time.
1 Heat pump capacity.
2 Required heating capacity (site dependent).
3 Additional heating capacity provided by backup heater.
Domestic hot water tank (field supply)
A domestic hot water tank (with or without booster heater) can be
connected to the unit.
The requirement of the tank is different for different unit and material
of heat exchanger.
Temperature
probe(T5)
Coil
Outlet
Tank booster heater
(TBH)
Inlet
Tank
The booster heater should be installed below the temperature probe
(T5).
The heat exchanger (coil) should be installed below the temperature
probe.
The pipe length between the outdoor unit and tank should be less
than 5 meters.
Tbivalent Outdoor temperature
Capacity/Load
③
②
①
Model 4-6kW 8-10kW 12-16kW
Volume of tank/L Recommended 100~250 150~300 200~500
Heat exchange area/
m
2
(Stainless steel
coil)
Minimum 1,4 1,4 1,6
Heat exchange area/
m
2
(Enamel coil)
Minimum 2,0 2,0 2,5
Room thermostat (field supplied)
Room thermostat can be connected to the unit(room thermostat should
be kept away from heating source when selecting the installation pla-
ce).
Solar kit for domestic hot water tank(field supplied)
An optional solar kit can be connected to the unit.
Operation range
Outlet water (Heating mode) +12 ~ +65ºC
Outlet water (Cooling mode) +5 ~ +25ºC
Domestic hot water +12 ~ +60ºC
Ambient temperature -25 ~ +43ºC
Water pressure 0,1~0,3MPa(g)
Water flow
4kW 0,40~0,90m
3
/h
6kW 0,40~1,25m
3
/h
8kW 0,40~1,65m
3
/h
10kW 0,40~2,10m
3
/h
12kW 0,70~2,50m
3/
h
14kW 0,70~2,75m
3
/h
16kW 0,70~3,00m
3
/h
The unit have a freeze prevention function that uses the heat pump or
backup heater (optional) to keep the water system safe from freezing
in all conditions. Since a power failure may happen when the unit is
unattended, It's suggested to use anti-freezing flow switch in the water
system. (Refer to 9.4 “Water piping”).