LAARS Pennant PNCV - Install and Operating Manual User Manual
Page 6
LAARS Heating Systems
Page 6
above grade such that blockage of the terminal from
accumulated debris or precipitation is prevented.
The dimensions and requirements that are shown
in
Table 1
should be met when choosing the locations
for the appliance.
1.6 Locating Pump-Mounted Water Heater
with Respect to Storage Tank(s)
For best results, the Pennant water heater should
be located within 15 feet (4.6m) of the storage tank(s).
The pump is sized for 30 feet (9.1m) of piping.
If the appliance must be installed with longer
piping runs, then larger diameter pipe or tubing may be
acceptable. Consult the factory for assistance.
Size
Vent Collar
Size
Horizontal
Vent Pipe
Diameter
Intake
Air Collar
& Pipe
Diameter
Max. Pipe
Length
Max. No.
of Elbows
Side Vent
Terminal
Part Number
Side Wall
Combustion
Air Terminal
Part Number
in
cm
in
cm
in
cm
ft
m
500
8
20
6
15
6
15
50
15
3
CA001401
20260701
750
10
25
8
20
6
15
50
15
3
CA001401
20260701
1000
10
25
8
20
8
20
50
15
3
CA001402
20260703
1250
12
30
8
20
8
20
50
15
3
CA001403
20260703
1500
12
30
8
20
8
20
50
15
3
CA001403
20260703
1750
14
36
8
20
8
20
50
15
3
CA001403
20260703
2000
14
36
12
30
12
30
50
15
3
CA001404
20260706
Table 2. Horizontal Vent / Combustion Air Parameters.
Appliance
Surface
Required
Clearance From
Combustible Material
Recommended
Service Access
Clearance
inches
cm
inches
cm
Left Side
1
2.5
24
61
Right Side
1
2.5
24
61
Top
1
2.5
12
30
Back
1
2.5
12**
30**
Front
1
2.5
36
91
Vertical
(Category 1)
Vent
6*
15.2*
Horizontal
(Category 3)
Vent
per UL 1738 venting
system supplier's
instructions
*1" (2.5 cm) when b-vent is used.
**When vent and/or combustion air connects to the back,
recommended clearance is 36" (91cm).
Table 1. Clearances.
1.7 Locating Pump-Mounted Boiler with
Respect to Return/Supply Header
For the best results, Pennant should be located
within 15 feet (4.6m) of the supply and return headers.
The pump is sized for 30 feet (9.1m) of piping.
If the appliance must be installed with longer
piping runs, then larger diameter tubing may be
acceptable. Consult the factory for assistance.
1.8 Locating Appliance for Correct
Horizontal Vent/Ducted Air Distance
From Outside Wall
The forced draft combustion air blower(s) in the
appliance has/have sufficient power to pull air and vent
properly when the guidelines for horizontal air and
vent are followed (see
Table 2
).
NOTE: On some models, the vent collar size is
larger than the size of the vent pipe that can be
used. Vent collar size and horizontal pipe diameters
can be found in Table 1. The larger vent collar
size is to accommodate Category I (vertical) vent
systems.
NOTE: When located on the same wall, the
Pennant combustion air intake terminal must
be installed a minimum of 12" (30cm) below the
exhaust vent terminal and separated by a minimum
of 36 inches (91cm) horizontally.
The air intake terminal must be installed high
enough to avoid blockage from snow, leaves and other
debris.