ROBERTS GORDON
®
CTH2-Series S
UBMITTAL
S
HEET
© 2004 Roberts-Gordon
APPLICATIONS, ENGINEERING AND DETAILED GUIDANCE ON SYSTEMS DESIGN, INSTALLATION AND PRODUCT PERFORMANCE IS AVAILABLE UPON REQUEST. ROBERTS GORDON
®
PRODUCTS ARE TO BE
INSTALLED ONLY IN ACCORDANCE WITH LOCAL LAWS, CODES AND REGULATIONS, AND ONLY BY A CONTRACTOR QUALIFIED IN THE INSTALLATION AND SERVICE OF GAS-FIRED HEATING EQUIPMENT.
NOTE:
1. All dimensions are from the surfaces of all tubes, couplings and elbows.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing
downstream from where the burner and burner tube connect.
3. “-” indicates an unapproved application. Roberts-Gordon prohibits the installation
of this heater for all unapproved applications.
*When installed in the first 20’ (6 m).
U-Tube, Opposite 45
°
Reflector
(inches)
(centimeters)
Model
A
B
C
D
A
B
C
D
CTH2-40
-
-
-
-
-
-
-
-
CTH2-60
8
54
60
22
21
138
153
56
CTH2-80
8
60
66
22
21
153
168
56
CTH2-100
10
64
74
22
26
163
188
56
CTH2-125
10
70
78
22
26
178
199
56
CTH2-150
12
74
84
22
31
188
214
56
CTH2-175
12
76
85
22
31
194
216
56
A
C
B
D
2-Foot Deco Grille, 1-Foot Deco Grille and Protective Grille
(inches)
(centimeters)
Model
A
B
C
D
A
B
C
D
CTH2-40
6
27
53
27
16
69
135
69
CTH2-60
6
35
63
35
16
89
161
89
CTH2-80
6
38
66
38
16
97
168
97
CTH2-100
6
40
71
40
16
102
181
102
CTH2-125
6
46
77
46
16
117
196
117
CTH2-150
6
50
80
50
16
127
204
127
CTH2-175
8
52
82
52
21
133
209
133
A
B
C
D
Lower Clearance Shield*
(inches)
(centimeters)
Model
A
B
C
D
A
B
C
D
CTH2-40
6
34
27
34
16
87
69
87
CTH2-60
6
39
33
39
16
100
84
100
CTH2-80
6
40
38
40
16
102
97
102
CTH2-100
6
50
44
50
16
127
112
127
CTH2-125
6
54
48
54
16
138
122
138
CTH2-150
6
55
50
55
16
140
127
140
CTH2-175
-
-
-
-
-
-
-
-
A
B
C
D
