'10 • HM-T-149A
Installation
32
Iutdoor unit installation
<MT500>
Connecting hot water coil to water main
The water heater in the indoor unit must be supplied with
necessary set of valves.
■ There must be a mixing valve if the temperature exceeds 60 °C.
■ Thermostatic mixing valve is necessary for hot water
supply at a stable temperature even if the temperature does
not exceed 60 °C
■ The safety valve must have a maximum 10.0 bar opening
pressure and be installed on the incoming domestic water
line according to outline diagram. The entire length of the
overf low water pipe from the safety valves must be
inclined to prevent water pockets and must also be frost
proof.
■ The end of overow pipe from the safety valves must be left
open to the atmosphere. The water may drip from the pipe.
■ See section Dockings on page 66 for outline diagram.
Extra electric hot water heater
The heat pump should be supplemented with an electric water
heater, if a hot tub or other significant consumer of hot water is
installed.
Connecting the hot water heater
Connecting hot water tank to HMS140V
For HMS140V, it is necessary to connect hot water tank or
baffer vessel.
■ Tank and its pipings to indoor unit must be installed
indoors where the temperature wouldn’t drop below 15 °C
in order to prevent pipings from icing.
■ Maximum piping length between HMS140V and tank is 10 m
■ Tank unit should be placed on f irm, preferably a concrete
f loor or foundation.
■ Tank unit can be aligned using the adjustable feet.
■ Ensure that there is 1000 mm free space in front and 300
mm above the product for future service.
<HT30>
<MT300>
To Next Page
Loading...
Need help?
General
