Installation / Operation Instruction Manual

19
Installation instructions
RTG-L-199/160N/X1 – 6 721 827 274 (2022/06)
Flue temperature:
▶ To prevent the risk of flue material overheat the appliance's
flue temperature is sensed and is limited. The flue
temperature limit is depending on inlet water temperature.
▶ Residential models: Maximum flue temperature is limited
to 145 °F (63 °C).
4.6.1 Vent options
This appliance can be installed as direct vent or Category IV.
The RTG-L-199/160N/X1 is approved with the following
venting options:
Table 5 Approved vent materials
For specific questions concerning vent material,
specifications, usage or installation, please contact the
vent manufacturer directly.
Approved Vent Manufacturers:
•M&G
•Centrotherm
•IPEX
• Royal Plastics
•Eccovent
•Charlotte
•Z-flex
Do not use cellular foam core pipe for exhaust. Approved for
intake only.
The vent connection for the appliance is secured with a clamp
on the appliance exhaust adapter. All other vent connections
must be glued, except PP and flex PP. Slide the vent pipe into
the exhaust adapter. The exhaust pipe must be properly
supported and must be pitched a minimum of a ¼ inch per foot
back to the appliance. This allows the condensate to drain
properly.
Maximum vent lengths and equivalent lengths per table 8
apply.
Item Material United States Canada
Vent or air intake pipe
and fitting
PP
flexible M&G /
DuraventCentrotherm
(UL-1738)
Thermoplastic vent pipe
must be certified to ULC
S636.
Air Intake pipe may be of any
material listed (left)
concentric
rigid
PVC schedule 40 ANSI/ASTM D1785
PVC-DWV ANSI/ASTM D2665
CPVC schedule 40 ANSI/ASTM F441
ABS-DWV schedule 40 ANSI/ASTM D2661
Pipe cement / primer PVC ANSI/ASTM D2564
CPVC ANSI/ASTM F493
ABS ANSI/ASTM D2235