Roberts Gorden Gas-Fired - Manual (Page 62)

CTH2-S ERIES I NSTALLATION , O PERATION AND S ERVICE M ANUAL
56
SECTION 14: GENERAL SPECIFICATIONS
14.1 Material Specifications
14.1.1 Reflectors
.024 Aluminum
(optional .024 Stainless Steel Type 304)
14.2 Heater Specifications
14.2.1 Ignition
Honeywell ® SmartValve ® II combines gas valve and
hot surface electronic ignition control. Fully auto-
matic, four-try, 100% shut-off, prepurge, auto reset,
LED indicator status.
14.3 Suspension Specifications
Hang heater with materials with a minimum working
load of 75 lbs (33 kg).
See Page 14, Figure 14.
14.4 Controls Specifications
Time switches, thermostats, etc. can be wired into
the electrical supply. External controls supplied as an
optional extra.
General Specifications for the heaters are as follows:
* See Page 5, Section 3 for clearances to combustibles.
GAS PRESSURE AT MANIFOLD:
Natural Gas:
3.5" wc
LP Gas: 10.5" wc
PIPE CONNECTION:
1/2" NPT (for 40, 60, 80, 100, 125)
3/4" NPT (for 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 40,60,80,100,125,150 4.6" wc Minimum
for 175 5.0" wc Minimum
14.0" wc Maximum
LP Gas: 11.0" wc Minimum
14.0" wc Maximum
ELECTRICAL RATING (ALL MODELS):
120 V - 60 Hz., 1.0 A (run) 5.0 A (Start)
Turbulator
(Select Models)
Side View
Reflector
17.5"
(44 cm)
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 (Btu/h) x (1000) Minimum Space Spot
CTH2-40 40 10' (3m) 8'-10' (2.4 - 3m) 8' (2.3m)
CTH2-60 60 20' (6m) 10'-12' (3 - 3.6m) 9' (2.7m)'
CTH2-80 80 20' (6m) 12'-15' (3.6 - 4.5m) 11' (3.3m)
CTH2-100 100 30' (9m) 12'-15' (3.6 - 4.5m) 12' (3.7m)
CTH2-125 125 40' (12m) 15'-20' (4.5 - 6m) 15' (4.6m)
CTH2-150 150 50' (15m) 20'-25' (6 - 7.6m) 20' (6.1m)
CTH2-175 175 60' (15m) 25' (7.6m) 23' (7m)