Bosch GWH 2700 ES LP User Manual page 16

Installation instructions
3.3.5 Condensate drain installation
Note: Do not install condensate drain in areas where it
may freeze.
1. Install condensate drain as close to heater as possi-
ble.
2. Use 3/8" ID high temperature silicone tube to con-
nect to condensate drain port. Do not use copper pip-
ing for any portion of the condensate drain.
3. Form a condensate trap by means of a 3" loop par-
tially filled with water.
4. To increase the tube length, connect to end of the
high temperature silicone tubing with vinyl tubing, PVC
or CPVC pipe. Do not reduce the internal diameter at
any point.
5. Dispose of condensate according to local codes.
10' MIN.
2' MIN.
3' MIN.
FIRESTOP SUPPORT
ELBOW
DRAIN TRAP
TO DRAIN - DISPOSE
OF CONDENSATE
ACCORDING TO
LOCAL CODES
APPLIANCE
Fig. 21 Condensate drain installation (combustion air
piping not shown)
3" Venting Z-flex
90° 2SVEVWCF03
Condensate
Drain Tee
Horizontal 2SVEDWCF03
Condensate
Drain
Condensate 2SVEDTK24
Drain Tube
Table 9 Approved Condensate Drain Part Numbers
16
RAIN CAP
STORM COLLAR
FLASHING
4" MIN.
AIR SPACE
CONDENSATE
DRAIN TEE
6720608782-04.2Av
ProTech Heat Fab
FST3 & 93PPLSTEE
FSDF3
FSHDT3 9321
N/A 7000TUBE
6 720 608 542