Electrically Testing The Unit - Samsung RC160MHXEA Installation And Maintenance Manual

Field settings to set, see user manual for a full list
2011 -2
•
2012 +15
•
2021 45-50
•
2022 37C
•
2091 1 tells unit to look for a run signal on terminal B22
•
4021 1
•
4024 +10
•
# it is possible to scroll through the days & select every day, then legionella can be run daily
rather than weekly.

Electrically testing the unit:

It is possible to test each component one after another using a service function. You can use
this to make sure you have wired everything correctly.
To access service mode press
Test 1
Firstly in test mode run the pump, press
seconds. The controller will display TEST. Immediately press the top left button to turn the
pump on and leave it running while in test mode. When the pump is running a little house with
a circle around it in the status window of the controller.
The unit wants to see at least 17 l / min flow to activate
the flow switch, if there is not enough flow the unit will
never operate. You should have a flow meter installed,
if you haven't now is the time to buy one.
If you look into the flow meter you can see the flow in
litres per minute. In this picture you can see a flow rate
indicated, this shows 25l/min NOT 35l/min
If the flow rate is too low you need to fix this before moving on.
low ambient setting for optimisation set to -5 in Scotland
high ambient temp for optimisation
Flow temperature in cold weather 50C for rads 45C for ufloor
Flow temperature in mild weather 37 for rads 37C for ufloor
tells unit a backup heat pump is present
tells unit not to use the backup heater if ambient is above +10C
blue set button and
The controller will display TEST.
Press the top left button the unit will run the pump.
To test the external run signal or stat is connected adjust
temperature on stat up.
Heat1 will replace test on screen.
To exit service mode press and hold cancel delete for 6
seconds
set button
blue
www.samsungehs.co.uk
test button together for 6 seconds.
and test button together for 6
©G Hendra January 2015 13