Maintenance And Cleaning - Arneg SR2 Manuel D'installation Et De Service

Condensation check - FANS -
the compressor starts
the condensation pressure exceeds
the setpoint values of the
condensation control pressure
switch "1"
High-pressure pressure switch setpoints
pressure
pressure
pressure
i
A relay in the electrical cabinet enables relaunching the backup intervention warning
interval

17. Maintenance and cleaning

DANGER! Live parts. Electrocution.
REMOVE THE ELECTRIC POWER SUPPLY BEFORE ANY OPERATION!
DO NOT touch the refrigeration system with wet hands or feet
WARNING! Gas leak Intoxication Frostbite
- cut off power to the refrigeration system via the master switch upstream of the same
- DO NOT stay in the room in which the refrigeration system is installed if it's poorly ventilated
- DO NOT operate on pressurized parts
ATTENTION! Hot surfaces. Burns : wait for the surfaces to cool down!
ATTENTION! Floor products. Vapours. Corrosion Breathing difficulty: avoid contact and
inhalation.
Before proceeding with any operation adopt all the precautions possible to avoid
accidents. Wear the Personal protective equipment provided (cap.3.).
In addition to the indications specified in the maintenance contract stipulated with the
manufacturer, proceed as follows.
17.1. Enter the machine room
Procedure
Step
1 open the door staying in the safety zone (behind the door)
stay on the edge
- abnormal noises
2
- oil or gas leaks
- any potential malfunction
05060162 00 02/02/2016
If
Step
switch
n°
1
I-II
Step
switch
n°
1
I-II
Step
switch
n°
1
I-II
If you do not notice
the 1st condensation step is activated
the 2nd and the 3rd condensation
steps are activated
R134a
start stop
bar
10 8
R404A
start stop
bar
17 14
R407F
start stop
bar
16 12.5
Action
enter carefully
SR2-SR3
English
Then
diff. on off
°C
2 39 31
diff. on off
°C
3 41 36
diff. on off
°C
3.5 39 31
Then
39