Condensate Drainage Connection; Leak Testing - REMKO WLT EC Series Operating And Installation Instructions

REMKO WLT EC series
6.2 Condensate drainage
connection
If the temperature falls below the dew point, con-
densate will form on the cooling fins during cooling
mode. Below the heat exchanger is a collection
tray which must be connected to a drain.
n The condensate drainage line should have an
incline of min. 2%. This is the responsibility of
the customer. If necessary, fit vapour-diffusion-
proof insulation.
n Route the unit's condensate drainage line
freely into the drain line. If the condensate runs
directly into a sewer pipe, fit a trap to prevent
any unpleasant odours.
n When operating the unit at outside tempera-
tures below 0 °C, ensure the condensate
drainage line is laid to protect it against frost. If
necessary, fit a pipe heater.
n Following installation, check that the conden-
sate run off is unobstructed and ensure that the
line is durably leak tight.
Fig. 31: Condensate drainage connection
The condensate hose is designed to be connected
on the left-hand side (as viewed from the front),
although it can also be changed by reconnecting
the hose if necessary.
36
min. 2%

6.3 Leak testing

The leak test is carried out after the connection
has been made.
1. Flush the system twice with tap water.
2. Clean the sieve insert on the dirt trap.
3. Fill the system with water again and bleed
the unit at the manual bleed valves.
4. Adjust the test pressure to at least 200 kPa
(2.0 bar).
5. Check the connections after a period of at
least 24 hours for leaking water. If water is
visible, the connection has not been estab-
lished properly. Tighten the connection or
establish a new connection.
6. After a successful leak test, remove the
excess pressure from the medium piping if a
water-glycol mixture is used or adjust the
non-circulating pressure to the required
system pressure.
NOTICE!
During manual bleeding, any glycol mixtures
which escape must be disposed of separately.
Do not feed them into the condensate tray!
1: Manual bleeding valve
1