Model LG Pool and Spa Heater
Page 5
Figure 1. General Configuration.
*
Ratings shown are for both natural and propane gas.
Venting Dimensions
Model
Heater
U.S. Indoor or
Firing Rate / Hr.*
Width
Vent
Outdoor
CAN Outdoor
(1,000's)
Diameter
Dim "H"
Shelter Dim "H"
in
(cm)
in
(cm)
in
(cm)
in
(cm)
BTU
(kcal)
LG125
15
(38)
5
(13)
17 3/8
(44)
16 1/4
(41)
125
(32)
LG175
18
(46)
6
(15)
18
(46)
24 1/8
(61)
175
(44)
LG250
22 1/2
(57)
7
(18)
18 1/4
(47)
25 1/4
(64)
250
(63)
LG325
26 3/4
(68)
8
(20)
18 7/8
(48)
26 1/2
(67)
325
(82)
LG400
31 3/4
(81)
9
(23)
21 1/2
(55)
27 1/2
(70)
400
(101)
The Lite2 LG heater may be installed indoors or
outdoors as outlined in later sections. Location of the
heater below
or above
the pool water level affects
operation of its water pressure switch. See sections
on water piping and heater start-up for more informa-
tion about this.
Avoid placing the heater in locations where it can
cause damage by water or condensate leakage. If this
is not possible, provide a suitable drain pan to catch
and divert any leakage. The pan must not block natural
flow of air around the heater.
All criteria given in the following sections reflect
minimum clearances as stated in the national stan-
dards. However, each installation must also be evalu-
ated taking into account the prevailing local conditions
such as wind speed and direction, proximity and
height of walls that may block ventilation or cause
down drafts, and proximity to public access areas.
2.3.2 Clearances
The heater must be placed to provide clearances
on all sides for maintenance and inspection. There
must also be minimum distances maintained from
combustible surfaces (see Table 2).
At least 20" (500mm) access must be available in
front of the heater for burner removal.
If the heater is to be installed in a garage, or
similar structure, all burners and burner ignition
devices must have a minimum 18" (457mm) clearance
above the floor.
