LAARS HWG-M2-250 - Installation, Operation and Maintenance Instructions - Manual (Page 4)

Page 4
LAARS Heating Systems
1.3 Unpacking
The 9600 HWG Water Heater is shipped in a
single carton with the following standard components
on top of the unit (see Figure 1).
1) Exhaust terminal
2) Intake terminal
3) Vent terminal backing plate (4)
4) Hubless coupling reducer
5) Hubless coupling (2)
Minimum Recommended
Clearances Clearance for
From Accessibility
Combustible and Venting
Construction
BOTH AGA CGA
Left Side 1" 6" 48"
Right Side (Controls) 1" 12" 24"
Top 1" 14" 24"
Back 1" 9" 24"
Front 1" 24" 48"
Vent 0"
Table 1. Location clearances.
Figure 1. Contents of shipping package.
1. Remove all packing and tie-down materials.
2. Check contents of the carton against items
shown above.
SECTION 2.
Locating and Clearances
2.1 Locating the 9600 HWG
The appliance should be located in an area
where leakage of any connections will not result in
damage to the area adjacent to the appliance or to
lower floors of the structure.
When such a location is not available, it is
recommended that a suitable drain pan, adequately
drained, be installed under the appliance.
The unit is design certified by AGA / CGA for
installation on combustible flooring; in basements; in
closets, utility rooms or alcoves. It must not be
installed on carpeting.
The location for the unit should be chosen with
regard to the vent pipe lengths, external plumbing,
ventilation of operating components and accessibility
for service and cleaning.
If there is potential for snow accumulation in your
area, both the vent terminals should be installed at an
appropriate level above grade (see Figures 2 and 3).
The following dimensions and requirements
should be met when choosing the location for the unit
(see Table 1):
Figure 2. Suggested vent terminal installations.
2.2 Locating the Unit for Proper Venting
Distance from the Outside Wall or
Roof Termination
Intake Exhaust
Maximum run: Maximum run:
3" pipe size 3" pipe size
55 equivalent feet 55 equivalent feet
4" pipe size 4" pipe size
85 equivalent feet 85 equivalent feet
Minimum run: Minimum run:
11 equivalent feet 21½ equivalent feet
Intake Terminal is Exhaust Terminal is
P/N 2400-102. P/N 2400-104.
Equivalent feet is determined by adding 10
linear feet for each 90° elbow and 5 linear feet for
each 45° elbow to be installed to the actual linear feet
of pipe required.
Example: 8' of pipe, 2 x 45° elbows and a 90°
elbow.
Equivalent Feet: 8' + (2 x 5') + (1 x 10') = 28.