Water Connections - Pentair Pool Products MASTERTEMP 250K BTU/HR Installation And User Manual

4' Min.
Vent
Termination
4' Min.
4' Min.
1' Minimum
Gas Meter
above snow or
Forced Air
finished grade
Inlet
3' Minimum clearance if
(whichever is
horizontal distance to
higher)
exhaust opening is less
than 10 feet.
FIGURE 13: U.S. minimum Exhaust Vent clearances. Local
codes may differ - consult local code officials
The terminal must be located (Canada):
• at least 10 feet (3.3M) from any opening into a build-
ing.
• at least 12" (.3M) above finished grade or the normally
expected snow accumulation level, whichever is higher
• At least 4 feet (1.2M) horizontally from electric meters,
gas meters, regulators and relief equipment
• At least 7 feet (2.1M) above grade adjacent to walk-
ways or similar traffic areas.
Allow at least three feet (1M) vertical clearance over vent
termination when terminating under an overhang or
deck.
Avoid corners or alcoves where snow or wind could have
an effect. Exhaust may affect shrubbery and some build-
ing materials. Keep shrubbery away from termination. To
prevent staining or deterioration, sealing or shielding
exposed surfaces may be required.
Metal Special
Support
Gas Vent
weight
requires
of pipe
Appliance
Adapter
Condensate
Tee
Metal
Vent
Body
Slope at least
1/4" per foot
Condensate
(2 cm per Meter)
drain w/Trap
down towards
condensate drain
FIGURE 14: Typical Special Gas Vent Pipe Installation
(Horizontal-Positive Pressure)
Table 7: Listed Thimbles and Vent Terminals (for Special Gas Vents)
Vent Brand
Saf-T Vent ®
Saf-T CI Vent ®
Z-Vent
Max 12"
4' Min.
Min 3"
Vent
Termination Vent
Termination
1' Min.
At least 7'
above grade
adjacent
to public
walkways
Listed
Terminal
3" (7.6 cm) Min.,
12" (30.5 cm)Max.
Clearance
Wall Thimble
(Part of Vent term.)
(Part of Vent term.)
2SVSWTF04
8. Fire Hazard. Do not run the heater vent
WARNING
into a common vent with any other appliance. Do not run
the Special Gas Vent into, through, or within any active
vent such as a factory built or masonry chimney.
Table 6: Maximum Vent Length
4" Special Gas Vent (Vertical or Horizontal)*
No. of 90° Elbows
0
1
2
3
4
* Minimum vent length is one foot (.34M), or in accordance with
vent manufacturer's instructions, and local and national codes.
Horizontal vents 3' (1M) or less in length do not require a condensate
tee, but must slope down toward the outlet at 1/4" to the foot (2cm/M) to
allow condensate to drain.
Final Installation Check
Check that horizontal vent pipe runs slope uniformly at
least 1/4" per foot (2cm per meter) to condensate
drain(s). No sags, no dips, no high or low spots.
Check that vent is supported at elbows, tees, and hori-
zontal and vertical runs according to manufacturer's
instructions and code requirements.
Check that vent supports and wall and ceiling penetra-
tions allow free movements up, down, and sideways
without putting any strains on the heater or vent body.
Check for at least six inch (15cm) free air clearance
between the heater vent pipe and combustible materials.
Check that all joints are completely together and sealed.

WATER CONNECTIONS

The heater requires proper water flow and pressure for
its operation. See Figures 15 for the recommended instal-
lation. The filter pump discharges to the filter, the filter
discharges to the heater, and the heater discharges
directly to the pool or spa.
A manual bypass valve should be installed across the
heater when the pump flow exceeds 120 GPM (454 LPM).
See "WATER FLOW RATE" on page 16 for setting of the
manual bypass valve.
Make sure that the outlet plumbing from the heater con-
tains no shut-off valves or other flow restrictions that
could prevent flow through the heater (except as noted
below). To switch flow between the pool and spa, use a
diverter valve. Do not use any valve that can shut off the
flow. Do not use a shut-off valve to isolate the heater
unless it is below the level of the pool or spa.
Horizontal Terminal
5490CI Horizontal Term.
5490CI Horizontal Term.
2SVSTTF04 Tee
15
Maximum Length in Feet (M)
70 ft. (21.3M)
57 ft. (17.4M)
45 ft. (13.7M)
32 ft. (9.8M)
20 ft. (6.1M)
Vertical Terminal
5400 Cap
5400 Cap
2SVSRCF04 Cap