Operating instructions

1104UESAGBEN, page 11/31
Figure 5:
Method to install conden-
sate drain
Condensate drain vent pipe
Condensate drain secondary
H.E.
Example connection of differ-
ent condensate drains
Connection for PVC tube dia
32mm
Table 6
Condense drain
rates of fl ow :
UESA 035 055 083 102
Natural gas l/h 2.3 3.1 6.6 7.5
Propane l/h 1.1 2.2 2.9 3.2
During operation, condensate is both produced in the heater and collected from the vent-
ing system. Therefore, the installaton requires a condensate drain from the secondary heat
exchanger and a condensate drain from the fl ue exhaust pipe. A short fl ue pipe with 3/4”
condensate drain point is supplied with the heater and a PVC collar for PVC tube of dia 32
is provided to drain the condensate from the secondary heat exchanger (see fi gure 5).
Important : each condensate drain must include a separate trap (no part of delivery).
3/4” male drain
tap
Remark : horizontal fl ue
must rise by 1° from the unit