Clearances To Combustibles; Standard Reflector; One Side Reflector; Two Side Reflectors - Roberts Gorden CTH2 Series Installation, Operation And Service Manual

ROBERTS GORDON ® CTH2-Series S

CLEARANCES TO COMBUSTIBLES

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.

Standard Reflector

A
C
B D

One Side Reflector

A
C
B D

Two Side Reflectors

A
C
B D
© 2004 Roberts-Gordon
S
UBMITTAL HEET
Model
CTH2-40
CTH2-60
CTH2-80
CTH2-100
CTH2-125
CTH2-150
CTH2-175
Model
CTH2-40
CTH2-60
CTH2-80
CTH2-100
CTH2-125
CTH2-150
CTH2-175
Model
CTH2-40
CTH2-60
CTH2-80
CTH2-100
CTH2-125
CTH2-150
CTH2-175
APPLICATIONS, ENGINEERING AND DETAILED GUIDANCE ON SYSTEMS DESIGN, INSTALLATION AND PRODUCT PERFORMANCE IS AVAILABLE UPON REQUEST. ROBERTS GORDON
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.
(inches)
A B C
6 27 53 27
6 35 63 35
6 38 66 38
6 40 71 40
6 46 77 46
6 50 80 50
8 52 82 52
(inches)
A B C
6 9 53 44
6 9 63 47
6 9 70 54
6 9 77 59
6 9 83 65
6 9 86 69
8 9 88 73
(inches)
A B C
6 15 53 15
6 23 66 23
6 25 72 25
6 27 78 27
6 32 84 32
6 35 88 35
8 40 91 40
(centimeters)
D A B
16 69 135
16 89 161
16 97 168
16 102 181
16 117 196
16 127 204
21 133 209
(centimeters)
D A B
16 23 135
16 23 161
16 23 178
16 23 196
16 23 211
16 23 219
21 23 224
(centimeters)
D A B
16 39 135
16 59 168
16 64 183
16 69 199
16 82 214
16 89 224
21 102 232
C D
69
89
97
102
117
127
133
C D
112
120
138
150
166
176
186
C D
39
59
64
69
82
89
102
® PRODUCTS ARE TO BE