Safety
Instructions
Product
Description
Installat
io
n
Electrical
Connection
Starting up &
Operation
Maintenance
& Repair
Dismantling &
Disposal
Condensing Unit For Refrigeration Networks
3.5 Refrigeration
connections
Master unit oil in / out connections
1 = Suction line
2 = Liquid outlet line
3 = Liquid level equalisation line (receiver)
(*)
4 = Liquid receiver pressure equalisation line (receiver)
(*)
5 = Outlet oil distributing circuit
“Oil Out” of the Master
unit should be connected to the
“Oil In” connection of
the Slave
unit, this line is oil from the oil reservoir (Master unit) to the slave unit(s)
compressor(s)
6 = Inlet oil distributing circuit
“Oil In” of the Master
unit should be connected to the
“Oil Out” connection of
the Slave
unit, this is oil from Slave unit oil separator to the Master unit oil reservoir.
(*)
Only on condensing units in network of 2 units. (
Liquid line should be insulated
on
OLQ-24V-N to OLQ-48V-N, OLTQ-26V-N & OLTQ-36V-N. Temperature could be as low
as –15°C).
3.5.1 Brazing recommendation
Remove the plugs in the following sequence:
1. Remove the discharge connection plug
2. Then remove the suction connection plug
Removing the plugs in this sequence prevents oil mist from coating the suction
tube making brazing difficult.
Be sure tube fitting inner diameter and tube outer diameter are clean prior to
assembly.
Both tubes are extended from the condensing unit housing, therefore we
recommend isolate the housing by using a wet cloth on the copper tubing.
Recommended brazing materials: A copper/phosphorous or
copper/phosphorous/silver alloy rod should be used for joining copper to copper
whereas to join dissimilar or ferric metals a silver alloy rod either flux coated or
with a separate flux would be used.
C6.1.4/0305/E
18
Part no: 3136433
