Rheem 199,000 Btu/hr, Руководство пользователя, Страница: 18 / 80

INSTALLATION AND OPERATION INSTRUCTIONS
1-10
TANKLESS WATER HEATER 199
1.4.1 Applications
All Tankless Water Heaters must be installed as a Direct Vent venting system.
The combustion air must be piped in from the outdoors and connected directly
to the unit’s combustion air connection.
See section 1.4.7 for air intake piping
requirements.
1.4.2 Exhaust Vent Material
Use of ABS, cellular core PVC (ASTM F891), cellular core CPVC, or Radel®
(polyphenolsulfone) in venting systems is prohibited.
Exhaust Vent Material – CANADA
Use only PVC, CPVC, Polypropylene (PPS), or stainless steel* vent components.
Venting components must be approved for use with a Category IV appliance,
listed under ULC S636 and must comply with CSA B149.1 (latest edition).
•
PVC (ULC-S636)
•
CPVC (ULC-S636)
•
Polypropylene (ULC-S636)
•
Stainless steel* (ULC-S636)
Exhaust Vent Material – USA
Use only PVC, CPVC, Polypropylene (PPS), or stainless steel* vent components.
Venting components must be approved by the authority having jurisdiction and as
follows:
•
PVC (Schedule 40 ASTM D1785)
•
CPVC (Schedule 40 ASTM F441)
•
Polypropylene (UL1738 / ULC-S636)
•
Stainless Steel * (Type BH), DuraVent FasNSeal, HeatFab Saf-T Vent, Z-Flex
Z-Vent
This unit is equipped with a top mounted 2” vent connection. Wet the vent
connection gasket and pipe with clean water prior to assembly. Insert 2” PVC or
CPVC directly into the units vent connection and secure the pipe by tightening
the clamp.
Polypropylene venting will require an adapter from the venting manufacturer
to transition from the 2” vent connection to the venting system. Centrotherm
InnoFlue polypropylene venting requires adapter part number ISAAL0202. Wet
the vent connection gasket and adapter with clean water prior to assembly.
Insert the polypropylene adapter into the units vent connection and secure by
tightening the clamp.
*Manufacturers of stainless steel Type BH venting systems must submit
their approved transition fitting to us for evaluation and written approval.
1.4.3 Vent Travel
The maximum exhaust venting length is dependent upon the vent pipe size (2”
or 3”) and the venting material (PVC, CPVC, PPs). See Table 3 for maximum
exhaust venting lengths and the required venting length reduction for each fitting
in the venting system.
Example: When using 6 x 90º CPVC elbows, the maximum lineal measure of
pipe allowed using 3” pipe is 72 feet (120’ – (6 x 8’ = 48’) = 72’).
WARNING
- Do not mix venting materials
from different venting
manufacturers.
These venting materials are
designed to be installed as
part of a complete system.
Failure to comply may result
in severe personal injury or
death.
- Fully insert the approved
venting material into the
unit’s exhaust outlet and
tighten clamp to ensure the
venting connection is locked
in place.
Figure 7:
Inlet and outlet vent
connections. Note the flue
exhaust test port.
NOTE
For the State of
Massachusetts, use only
plastic piping, fittings
and vent terminations as
specified in this manual
which are approved by the
Massachusetts Board of State
Examiners of Plumbers and
Gas for venting of appliances
(see hyperlink below):
https://licensing.reg.state.
ma.us/pubLic/pl_products/
pb_pre_form.asp