General Introduction - Airwell WELLEA SPLIT A R3 Installationsanleitung

5 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 (field supply) and
solar kits (field supply).
A wired controller is supplied with the unit .
If you choose the built-in backup heater unit, the backup heater can increase the heating capacity during cold outdoor
temperatures. The backup heater also serves as a backup in case of malfunctioning and for frozen protection of the outside
water piping during winter time.
Capacity/Load
③
②
Tbivalent Outdoor temperature
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.
Tank
Temperature
probe(T5)
Coil
The booster heater should be installed below the
temperature probe (T5).
The heat exchanger (coil) should be installed below the
temperature probe.
①
Outlet
Tank booster heater
(TBH)
Inlet
17
Indoor Unit
Volume of tank/L Recommended
Heat exchange area/m
2
Minimum
(Stainless steel coil)
Heat exchange area/m
2
Minimum
(Enamel coil)
Room thermostat(field supply)
Room thermostat can be connected to the unit
(room thermostat should be kept away from heating
source when selecting the installation place).
Solar kit for domestic hot water tank(field supply)
An optional solar kit can be connected to the unit.
Operation range
Operationg range of indoor unit
Outlet water (Heating mode)
Outlet water (Cooling mode)
Domestic hot water
Ambient temperature
Water pressure
60
Water flow 100
160
The unit have a freeze prevention function that uses the
heat pump or backup heater to keep
system safe from freezing in all conditions. Since
a power failure may happen when the unit
unattended, It's suggested to use anti-freezing flow
switch in the water system. (Refer to 8.5"Water
piping").
12 - 14 - 16
4 - 6 kW 8 - 10 kW
kW
100~250 150~300 200~500
1.4 1.4 1.6
2.0 2.0 2.5
+12 ~ +65℃
+5 ~ +25℃
+12 ~ +60℃
+5 ~ +35℃
0.1~0.3MPa
0.40~1.25m /h
3
0.40~2.10m /h
3
0.70~3.00m /h
3
the water
is