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.
GENERAL SPECIFICATIONS
Material Specification
Reflectors
.024 Aluminum
Heater Specifications
Ignition
Fully automatic hot-surface ignition with safety
shut-off.
Suspension Specifications
Hang heater with materials with a minimum working
load of 75 lbs (33 kg).
Controls Specifications
Time switches, thermostats, etc. can be wired into
the electrical supply. External controls supplied as an
optional extra.
General Specifications for CTH2-Series heaters are as follows:
Gas Pressure at Manifold
Natural Gas:
3.5" w.c.
LP Gas:
10.5" w.c.
Pipe Connection
1/2" NPT (for CTH2-40, 60, 80, 100, 125)
3/4" NPT (for CTH2-150 & 175)
Dimensions
Vent Connection Size:
4" (10 cm)
Outside Air Connection Size: 4" (10 cm)
Refer to figure above for dimensional information.
Gas Inlet Pressure
Natural Gas:
for CTH2-40,60,80,100,125,150 4.6" w.c. Minimum
for CTH2-175
5.0" w.c. Minimum
14.0" w.c. Maximum
LP Gas:
11.0" w.c. Minimum
14.0" w.c. Maximum
Electrical Rating (all Models)
120V - 60 Hz., 1.0 Amp (run) 5.0 Amp (Start)
Turbulator
(select models)
Side View
Reflector
17.5"
(44 cm)
Maximum or Minimum Length "A"
End View
13.5"
(34 cm)
9.5"
(24 cm)
Burner Tube
Heat Input
Rate
Length “A”
Recommended
Minimum Mounting Height*
Model
(BTUH X1000)
Minimum
Maximum
Space
Spot
CTH2-40
40
10' (3m)
10' (3m)
8'-10' (2.4 - 3m)
8' (2.3m)
CTH2-60
60
20' (6m)
20' (6m)
10'-12' (3 - 3.6m)
9' (2.7m)'
CTH2-80
80
20' (6m)
30' (9m)
12'-15' (3.6 - 4.5m)
11' (3.3m)
CTH2-100
100
30' (9m)
40' (12m)
12'-15' (3.6 - 4.5m)
12' (3.7m)
CTH2-125
125
40' (12m)
50' (15m)
15'-20' (4.5 - 6m)
15' (4.6m)
CTH2-150
150
50' (15m)
60' (18m)
20'-25' (6 - 7.6m)
20' (6.1m)
CTH2-175
175
60' (15m)
70' (21m)
25' (7.6m)
23' (7m)
