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High Temperature S80 Installation
Combi Installation
Installing the indoor box Combi
The box contains, hot water cylinder 3 port valve, water to refrigerant heat
exchanger, filter ball, flow meter, flow switch, expansion vessel, an 8m pump,
cylinder sensor and the remote controller.
Install the unit indoors, it’s not waterproof. It needs to be sited less than 30m
from the outdoor unit if size 2 and 3 and 75m if its size 4-5-6.
The box is 1816 high, 600mm wide, 733mm deep. It weighs 135kg empty and
up to 400kg full
Note the pump in the combi can only manage a run of 10m at 28mm diameter
copper each way to the header.
You need a g3 drain from the unit in 15mm, the fitting on the unit is 16mm so
needs chopping off.
Combi units need a drain connection for the Robokit and condensation
Refrigeration pipework Combi
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
2 HP
Ø 12.7 (1/2”) (*)
Ø 6.35 (1/4”)
2.0 HP
Ø 15.88 (5/8”) (*)
Ø 6.35 (1/4”)
2.5 HP
Ø 6.35 (1/4”) (*)
2.5 HP
Ø 9.52 (3/8”) (*)
( 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”)
Note on the 2 and 2.5HP units run the pipes as per outdoor unit, the indoor comes with adaptors to suit the pipework.
+H
Before power up
On the indoor circuit board set the following switches
DSW 4, Pin 5 needs to set pushed up
DSW 4 Pin 3 push to up to enable immersion heater
Note before the unit will run the expansion valve dip switch needs
to be set by the fridge engineer.
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
Vaccing and Charging
When delivered the indoor unit expansion valves are fully closed.
To open the valve you must apply power to the unit and make sure
dis 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.
Now turn to page 33.
