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Page 8 13119-6-0107
Figure 3
Checking Manifold Pressure
Both Propane and Natural gas valves have a built-in pressure
regulator in the gas valve. Natural gas models will have a manifold
pressure of approximately 4.0” w.c. (.996kPa) for DVC-35T and
3.5” w.c. (.871kPa) for DVC-35IPT at the valve outlet with the
inlet pressure to the valve from a minimum of 5.0” w.c. (1.245kPa)
for the purpose of input adjustment to a maximum of 7.0” w.c.
(1.743kPa). Propane gas models will have a manifold pressure
approximately 10.0” w.c. (2.49kPa) at the valve outlet with the inlet
pressure to the valve from a minimum of 11.0” w.c. (2.739kPa)
for the purpose of input adjustment to a maximum of 13.0” w.c.
(3.237kPa).
A 1/8” N.P.T. plugged tapping, accessible for test gauge connection,
is located on the outlet side of the gas control.
The built-in regulator comes on at approximately 1/4th pressure
and full on in 10 seconds.
Clearances
1. In selecting a location for installation, it is necessary to provide
adequate accessibility clearances for servicing and proper
installation. A front clearance of 36” is recommended. Do not
block outlet or inlet air openings on the front grill.
2. The DV4T-59-1, 5” to 9” wall depth is the standard vent kit
provided with the DVC-35T or DVC-35IPT. See Accessories
Page 6 to order vent kits for wall depths of 8” to 12” or 12”
to 19”. The use of tubes not supplied by the manufacturer
results in unsatisfactory performance.
3. The DVC-35T and DVC-35IPT can be attached to the wall or
recessed into the wall up to 9 1/2” in depth but the minimum
5” vent/air intake system wall depth must be maintained.
Example: If furnace is recessed into the wall at a depth of
9 1/2”, the minimum wall depth behind the furnace must be
5”.
4. The wall in which the furnace is recessed has (0) zero clearance
to the furnace sides and top.
5. When using side discharge registers, SOR-1 or SOK-1, the
furnace cannot be recessed into the wall.
6. Clearance to sidewall or combustible material is 4”.
7. Ceiling clearance is 4”.
8. Floor and rear wall clearance is (0) zero inches.
9. Clearance of 18” is required to sidewall or combustible material
when flush mounted SOR-1, side outlet register is used.
10. The minimum distance from the center of the vent cap to the
nearest outside corner or obstruction is 12”.
Figure 4
The vent terminal of this direct vent appliance shall be located at
least 9” from any opening through which flue gases could enter a
building. The bottom of the vent terminal and the air intake shall
be located at least 12” above grade. See vent location, Figure 4.
WARNING: The nearest point of the vent cap should be
a minimum horizontal distant of six (6) feet from any
pressure regulator. In case of regulator malfunction, the
six (6) feet distance will reduce the chance of gas entering
the vent cap.
CLEARANCES