36
VENT TERMINATION
VENT TERMINATION
ADAPTER
PVC VENT
(SUPPLIED BY OTHER)
VENT
COUPLING
PVC ADAPTER
STAINLESS STEEL
CONDENSING
HEAT EXCHANGER
INSIDE UNIT CABINET
OUTSIDE UNIT CABINET
VENT TEMPERATURE HIGH LIMIT
(INCLUDED WITH D-32)
(D-15 SHOWN)
3.21.1.
Freeze Protection
To enable freeze protection, DIP switch position 7 (on the
PIM) must be turned on (UP position). This is the default
position.
If the water temperature drops below 45°F (7°C) on
the Outlet or Inlet sensors, the Boiler pump is enabled.
The pump is turned off when both the Inlet and Outlet
temperatures rise above 50°F (10°C).
If either the outlet or inlet temperature drops below 38°F
(3°C), the VERSA starts the burner at the minimum firing
rate. The burner cycle will terminate when both the Inlet
and Outlet temperatures rise above 42°F (6°C).
*
HOUSEKEEPING PAD
CONDENSATE TRAP
F10026
8.5" MIN
(215 mm)
HEATER
D-11 FLUE
EXHAUST
VENT CAP
36" MIN
(914 mm)
INSULATED
EXHAUST
VENTING
TEST PORT
12" MIN
(305 mm)
* See Figure 6 on page 8.
Figure 41. Outdoor Installation
3.22. Condensate Treatment
The condensate must be drained properly to protect the
appliance and drainage system. The condensate from
the heater is acidic. Its pH is typically between 3.2 and
4.5. Raypak recommends treating the condensate with a
Condensate Treatment kit (Sales order option Z-12). The
Treatment kit is connected to the condensate drain system
and contains treatment media to raise the pH level of the
condensate. The kit should be added to avoid damage to
the drainage system and to meet local code requirements.
The pH of the effluent entering a sanitary drain must be
5.0 or higher.
Vent pipe condensate drains are also required for
installation of the XTherm. Follow vent manufacturer
instructions for location of condensate drains in the vent.
The vent condensate should also be routed through a
treatment kit, as required by local code. See
Figure 43
.
The treatment kit must be sized to the amount of
condensate generated by the appliance and the vent.
A
A
CAUTION:
In general, the condensate piping from
the appliance must have a downward slope of ¼" per
horizontal foot. Condensate drain traps must be primed
with water to prevent gas flue leaks. Treatment kits
should be checked at least once per year. To ensure the
pH of the effluent is 5.0 or higher, the media should be
replenished as necessary. When replacing the media,
they should be no smaller than ¾" to avoid blockage in
the condensate piping. Figure 43 is a visual guide only.
Follow the manufacturer’s instructions for the installation
of the Treatment kit and condensate drains.
A
A
WARNING:
Do not install the heater outdoors if
freezing conditions are typical. The condensate will
freeze and back up the flue system.
Figure 42.
D-32 PVC Vent Adapter
Содержание Xtherm 1005A
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