DTH Electric Boilers
USE & CARE MANUAL
(Revision November/05)
, Page
2.
Section 1: Dimensions & Specifications
Table 1: Electric Ratings for 240 VAC (1 phase) Electric Boilers:
Current
Amp
Model
P
KW
Heating
Elements
Total
with
Circulator
Elements
Stages
Aquastats
Lights
Contactors
Wires
CU
Fuse
A
GTH 6
6
25.0
34.0
2 X 3KW
2
2
2
1
8
50
GTH 8
8
33.3
42.3
1X 3KW
1 X 5KW
2 2 2 1 6 70
GTH 10
10
41.6
50.6
2 X 5KW
2
2
2
1
6
70
GTH 12
12
50.0
59.0
4 X 3KW
4
4
4
1
4
100
GTH 15
15
62.5
71.5
2 X 3KW
2 X 4.5KW
4 4 4 1 3 110
GTH 18
18
75.0
84.0
4 X 4.5KW
4
4
4
1
3
110
GTH 20
20
83.4
92.4
4 X 5KW
4
4
4
1
2
125
GTH 24
24
100.0
109.0
4 X 6KW
4
4
4
1
1
150
GTH 27
27
112.5
121.5
6 X 4.5KW
6
6
6
2
1/0
175
GTH 30
30
125.0
134.0
6 X 5KW
6
6
6
2
2/0
200
GTH 33
33
138.0
147.0
3 X 5KW
3 X 6KW
6 6 6 2 2/0 200
* Current for circulator (9 Amp max)
Table 2: Electric Ratings for 600 VAC (3 phases) Electric Boilers:
Model
P
KW
Current
Amp
Elements Stage
Aquastats Lights Contactors
Wires
CU
Fuse
A
GTH 9
9
8.7
3 X 3KW
1
1
1
2
14
15
GTH 13
13.5
13.1
3 X 4.5KW
1
1
1
2
12
20
GTH 18
18
17.5
6 X 3KW
2
2
2
3
10
30
GTH 22
22.5
22.0
3 X 3KW
3 X 4.5KW
2 2 2 3 10
30
GTH 27
27
26.0
6 X 4.5KW
2
2
2
3
8
40
GTH 30
30
29.1
6 X 5KW
2
2
2
3
8
40
GTH 36
36
35.0
6 X 6KW
2
2
2
3
8
50
Table 3: Connections sizes & Boiler overall dimensions
Connections sizes
Boiler overall dimensions
Boiler return
1 “ NPT M
Height
12 3/16 inches
Boiler feed
1 “ NPT M
Width
16 7/16 inches
Waterworks
1/2 “ NPT F
Depth
28 ½ inches
Safety valve
3/4 “ NPT F
Shipping weight
99 lbs.
Drain valve
1/2 “ NPT F
Drain valve (GTH
33,36)
3/4 “ NPT M
Operating temperature : from 50°F to 190°F.; Maximum operating pressure: 30 p.s.i.
