CTHN-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
88 of 91
SECTION 20: GENERAL SPECIFICATIONS
20.1 Material Specifications
20.1.1 Reflectors
.024 Al
u
min
u
m
(Optional .024 Stainless Steel Type 304)
20.2 Heater Specifications
20.2.1 Control System
F
u
lly a
u
tomatic, three-try, direct spark, electronic
ignition control, 100% safety sh
u
t-off.
20.3 Suspension Specifications
Hang heater
w
ith materials
w
ith a minim
u
m
w
orking
load of 75 lbs (33 kg).
.
20.4 Controls Specifications
Time s
w
itches, thermostats, etc. can be
w
ired into
the electrical s
u
pply. External controls s
u
pplied as an
optional extra.
General Specifications for the heaters are as follo
w
s:
for clearances to comb
u
stibles.
GAS PRESSURE AT MANIFOLD:
Nat
u
ral Gas:
3.5"
w
c
LP Gas:
10.5"
w
c
PIPE CONNECTION:
1/2" NPT (for CTHN-40, 60, 80, 100, 125)
3/4" NPT (for CTHN-150,175 & 200)
DIMENSIONS:
Vent Connection Size:
4" (10 cm)
O
u
tside Air Connection Size: 4" (10 cm)
Refer to fig
u
re above for dimensional information.
GAS INLET PRESSURE:
Natural Gas:
for CTHN-40, 60, 80,
100, 125, 150
4.6"
w
c Minim
u
m
for CTHN-175, 200
5.0"
w
c Minim
u
m
14.0"
w
c Maxim
u
m
LP Gas:
All Models
11.0"
w
c Minim
u
m
14.0"
w
c Maxim
u
m
ELECTRICAL RATING:
Unitary Models 40-150: 120 V - 60 Hz, 1 A
Unitary Models 175-200: 120 V - 60 Hz, 2 A
M
u
ltib
u
rner All Models: 120 V - 60 Hz, 0.1 A
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
Model
Heat Input Rate
(Btu/h) x (1000)
Length ''A''
Minimum
Unitary Multiburner
Recommended
Minimum Mounting Height*
Space Spot
CTHN-40
40
10' (3 m)
20' (6 m)
8'-10' (2.4 - 3 m)
8' (2.3 m)
CTHN-60
60
20' (6 m)
30' (9 m)
10'-12' (3 - 3.6 m)
9' (2.7 m)
CTHN-80
80
20' (6 m)
30' (9 m)
12'-15' (3.6 - 4.5 m)
11' (3.3 m)
CTHN-100
100
30' (9 m)
40' (12 m)
12'-15' (3.6 - 4.5 m)
12' (3.7 m)
CTHN-125
125
40' (12 m)
50' (15 m)
15'-20' (4.5 - 6 m)
15' (3.7 m)
CTHN-150
150
40' (12 m)
50' (15 m)
20'-25' (6 - 7.6 m)
20' (4.6 m)
CTHN-175
175
50' (15 m)
60' (18 m)
25' (7.6 m)
23' (6 m)
CTHN-200
200
50' (15 m)
60' (18 m)
25' (7.6 m)
25' (7.6 m)
