SINGLE
STAGE
TANKSTAT
STAGE 1
CONNECTION
ATTACH STAGE 1 CONNECTIONS
ON HEATER TO THE SINGLE STAGE
TANKSTAT AS SHOWN IN THE DIAGRAM ABOVE.
Fig. 23:
Consult the wiring diagram shipped with the heater in the instruction packet or at the end of this section. The
NOTE: If any of the original wire supplied with the heater must be replaced, it must be replaced with similar sized 105°C wire or its equivalent.
Venting
NOTE: For
CAUTION: Proper installation of flue venting is criti- cal for the safe and efficient operation of the heater.
General
Flue Exhaust Tee
An optional Flue Exhaust Tee is available to facilitate horizontal venting. Any reference to horizontal venting that exits the back of the heater requires this tee. Refer to Table L for the appropriate kit for your model.
Model | Diameter | Order Number | |
|
|
| |
302B | 5” | 011838 | |
|
|
| |
6” | 011839 | ||
|
|
| |
652B, 752B, | 8” | 011840 | |
902B | |||
|
| ||
|
|
| |
Table L: Flue Exhaust Tee Kits |
Appliance Categories
Heaters are divided into four categories based on the pressure produced in the exhaust and the likelihood of condensate production in the vent.
Category I – A heater which operates with a
Category II – A heater which operates with a
Category III – A heater which operates with a positive vent pressure and with a vent gas temperature that avoids excessive condensate production in the vent.
Category IV – A heater which operates with a positive vent pressure and with a vent gas temperature that may cause excessive condensate production in the vent.
See Table M for appliance category requirements.
NOTE: For additional information on appliance categorization, see appropriate ANSI Z21 Standard and the NFGC (U.S.), or B149 (Canada), or applicable provisions of local building codes.
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