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High Temperature S80 Installation
High Temperature S80 Installation
Installing the High temp indoor box
The HT box contains, the high temp refrigeration system including a
compressor, water to refrigerant heat exchanger, filter ball, flow meter, flow
switch, expansion vessel, an 8m pump, cylinder sensor and the remote
controller.
Note that the HT box makes a noise as it has a compressor in it, you need to
think about sighting this out of hearing range, don’t put it in the lounge.
It might be an idea to mount it on rubber feet and fit flexi hoses if it’s going in
the house. The fittings are 1 ¼ bsp female.
Install the unit indoors, it’s not waterproof and it sounds like a dishwasher
so keep it out of ear shot. It needs to be sited within 75m of the hot water
cylinder, and less than 75m from the outdoor unit.
The box is 600mm wide, 751mm high, 623mm deep.
Note the pump in the HT can only manage a run of 10m at 28mm diameter
copper each way to the header or cylinder.
HT units need a drain connection for the Robokit and condensation
Refrigeration pipework HT
Your fridge engineer will need to pipe between the indoor and outdoor units
with refrigeration pipework.
Pipe Sizes
Outdoor Unit & Yutaki M
Indoor Unit
Model
Pipe Size
Model
Pipe Size
Gas Pipe
Liquid Pipe
Gas Pipe
Liquid Pipe
( 3 - 6 ) HP
Ø 15.88 (5/8”)
Ø 9.52 (3/8”)
( 3.0 - 6.0 ) HP
Ø 15.88 (5/8”)
Ø 9.52 (3/8”)
Pipe Limits
Outdoor Unit (HP)
4
5
6
Maximum piping length between outdoor unit
and indoor unit (Lmax)
Actual piping length (L)
75m
Equivalent piping length
95m
Minimum piping length between outdoor unit
and indoor unit (Lmin)
Actual piping length (L)
5m
Maximum height difference between indoor
and outdoor unit (H)
Outdoor unit higher than indoor unit
30m
Indoor unit higher than outdoor unit
20m
All units have enough refrigerant R410a for 15m of pipework (each way).
The additional refrigerant charge required is:
•
Size 4 add 60g/m after 15m
•
Size 6 add 60g/m after 15m
If the pipe length is under 5m set DSW2 pin 1 up to on. If the pipe length is over 30M set DSW2 pin 2 to up on
When delivered the indoor unit expansion valves are fully closed. To open the valve you must
apply power to the unit and make sure dip switch DSW4 pin 2 to up .
You MUST pressure test, vac and charge using both service valves at all times.
When you finish vaccing and charging switch power off the unit, set DSW4 pin 2 to off and then power up again or the unit wont
start.
+H
