Use and Care Manual

2 GALAXY STEAM BOILER
ORIFICE SIZES indicated for Sea Level are factory installed in
boiler unless otherwise specified by the local authority.
See VII, page 11 for burner input adjustment.
GAS VALVE CONNECTION Size is 1/2" f.p.t. for all sizes.
COMBUSTIBLE FLOOR KIT increases all height dimensions by 1".
RAISED SLAB - When mounting boiler on a raised slab, the slab
must extend at least 2" beyond the boiler cabinet on all sides.
CHIMNEY HEIGHT: 15 ft. minimum from draft hood skirt to top of
chimney. CHIMNEY INSIDE DIAMETER must be same as Dimen-
sion “C” or larger. Larger diameter and/or height may be required if
two or more boilers or a boiler and another appliance are vented to
a single chimney.
GXHA-100 GXHA-120 GXHA-160 GXHA-200 GXH-230 GXH-250 GXH-275 GXH-300H
A ––––29
3
⁄4 32
1
⁄2 32
1
⁄2 32
1
⁄2
B 16
1
⁄2 16
1
⁄2 20 23
1
⁄4 23
1
⁄4 26 26 26
C 5667 777 9
D ––––55
1
⁄2 55
1
⁄2 55
1
⁄2 59
1
⁄8
E – – – – 14 14 14 15
F 10 10 11
3
⁄4 13
1
⁄2 13 14
3
⁄4 14
3
⁄4 14
3
⁄4
G ––––1
1
⁄2 1
1
⁄2 1
1
⁄2 1
1
⁄2
H ––––2
1
⁄2 2
1
⁄2 2
1
⁄2 2
1
⁄2
J ––––3
1
⁄2 3
1
⁄2 3
1
⁄2 3
1
⁄2
K ––––9
3
⁄4 9
3
⁄4 9
3
⁄4 9
3
⁄4
M 28
5
⁄8 28
5
⁄8 28
5
⁄8 28
5
⁄8 ––– –
GXH AND GXHA SERIES STEAM BOILERS - DIMENSIONS IN INCHES
RIGHT SIDE
GXH-PZT-PPZT
RIGHT SIDE
GXH-PZ
GXH-230 Natural 44 45 45 45 46 47 47 48 48 49
through 275 Propane 54 54 55 55 55 55 55 56 56 56
GXH-300H Natural
Gas* 43 44 44 44 45 45 46 47 47 48
GXHA
Natural 45 46 47 47 47 48 48 49 49 50
Propane 55 55 55 55 56 56 56 56 56 57
BOILER MODEL
GAS TYPE
2,000
ELEVATION–FEET
ORIFICE SIZES AT HIGH ALTITUDES
INCLUDES 4% INPUT REDUCTION FOR EACH 1000 FEET
3,000
4,000
5,000 6,000
7,000
8,000
9,000 10,000
Orifice
Size for
Sea Level
*For L.P. Propane gas, consult factory.
BOILER DIMENSIONS
GXHA Series