Page 5
HV BOILER
INSTALLATION & OPERATING INSTRUCTIONS
E
F
D
C
B
C
A
Clearances
A
B
C
D
E
F
Alcove
in
25
*
6
4
7
4
mm
635
*
152 102 178 102
Closet
in
25
2
6
4
7
4
mm
635
51
152 102 178 102
To Service
in
N/A
N/A
6
4
10
10
mm
N/A
N/A 157 102 254 254
* No front wall for alcoves.
FIG. NO. 1 Minimum Clearances to Combustible Construction
TABLE 1 Boiler Dimensions
Boiler Size
Dimension
Dimension
Vent Dia.
Vent Dia.
A
B
CATEGORY I
CATEGORY III
Single Wall Galv.
Horizontal Vent
in
mm
in
mm
in
mm
in
mm
HV-50
10
7
⁄
8
276
2
7
⁄
16
62
4
102
4
102
HV-75
13
5
⁄
8
346
3
13
⁄
16
97
4
102
4
102
HV-100
16
3
⁄
8
416
5
3
⁄
16
132
4
102
4
102
HV-125
19
1
⁄
8
486
6
9
⁄
16
167
5
127
4
102
HV-150
21
7
⁄
8
556
7
15
⁄
16
202
5
127
4
102
GAS VALVE
TEMP.
CONTROL
JUNCTION BOX,
CONTROL CENTER
& INDUCER RELAY
FRONT VIEW
A
2 11/16"
2 11/16"
FLAME
ROLL-OUT
SWITCH
6 1/2"
B
6 3/4"
13 1/4"
27 5/8"
5 5/8"
13 1/2"
11 1/2"
30"
GAS INLET
8 5/8"
PRESS.
SWITCH
INDUCER
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(2)
SIDE VIEW
(2)
Notes: 1. Components located behind front panel
2. Vertical dimensions must be adjusted when using a base pan or concrete foundation under the boiler
18"
FIG. NO. 2 Boiler Dimensions & Component Locations
