(Supersedes PF492)
PF492-1
JULY, 2002
Draft Barrier Heaters
Type CAF-6 and CCAS-8
CAF-6
CCAS-8
TABLE 1 — Specifications
Dimensions (In.)
Model
Model
Volts
Phase
Watts
Amps
BTUH
Height
Length
Depth
Weight (Lbs.)
CAF-6F205
CAF-6F205
CAF-6F205
CAF-6F205
CAF-6F307
CAF-6F307
CAF-6F307
CAF-6F307
CAF-6F410
CAF-6F410
CAF-6F410
CAF-6F410
CAF-6F512
CAF-6F512
CAF-6F512
CAF-6F512
CAF-6F615
CAF-6F615
CAF-6F615
CAF-6F615
CAF-6F717
CAF-6F717
CAF-6F717
CAF-6F820
CAF-6F820
CAF-6F820
CAF-6F922
CAF-6F922
CAF-6F922
CAF-6F025
CAF-6F025
CAF-6F025
CCAS-8F205
CCAS-8F205
CCAS-8F205
CCAS-8F205
CCAS-8F307
CCAS-8F307
CCAS-8F307
CCAS-8F307
CCAS-8F410
CCAS-8F410
CCAS-8F410
CCAS-8F410
CCAS-8F512
CCAS-8F512
CCAS-8F512
CCAS-8F512
CCAS-8F615
CCAS-8F615
CCAS-8F615
CCAS-8F615
CCAS-8F717
CCAS-8F717
CCAS-8F717
CCAS-8F820
CCAS-8F820
CCAS-8F820
CCAS-8F922
CCAS-8F922
CCAS-8F922
CCAS-8F025
CCAS-8F025
CCAS-8F025
120
208
240
277
120
208
240
277
120
208
240
277
120
208
240
277
120
208
240
277
208
240
277
208
240
277
208
240
277
208
240
277
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
500
500
4.2
2.4
2.1
1.8
6.3
3.6
3.1
2.7
8.3
4.8
4.2
3.6
10.4
6
1,706
1,706
1,706
1,706
2,559
2,559
2,559
2,559
3,412
3,412
3,412
3,412
4,265
4,265
4,265
4,265
5,118
5,118
5,118
5,118
5,971
5,971
5,971
6,824
6,824
6,824
7,677
7,677
7,677
8,530
8,530
8,530
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
6/7.5
24.3
24.3
24.3
24.3
36.3
36.3
36.3
36.3
48.3
48.3
48.3
48.3
60.3
60.3
60.3
60.3
72.3
72.3
72.3
72.3
84.3
84.3
84.3
96.3
96.3
96.3
108.3
108.3
108.3
120.3
120.3
120.3
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
7
7
500
7
500
7
750
9.5
9.5
9.5
9.5
12
12
12
12
15
15
15
15
18
18
18
18
21.5
21.5
21.5
25
25
25
29
29
29
33
33
33
750
750
750
1000
1000
1000
1000
1250
1250
1250
1250
1500
1500
1500
1500
1750
1750
1750
2000
2000
2000
2250
2250
2250
2500
2500
2500
5.2
4.5
12.5
7.2
6.3
5.4
8.4
7.3
6.3
9.6
8.3
7.2
10.8
9.4
8.1
12
10.4
9
© 2010 Chromalox, Inc.
GENERAL
Draft Barrier Heater Installation (Wall)
1. Once the correct mounting height is established, scribe or snap
a level line on the wall to maintain each heater back plate in
horizontal alignment, when mounting.
2. Remove heater front cover by lifting top rear edge to unsnap
cover from back plate (store cover in safe location to avoid
damage to the finish). (See Figure 2).
3. Remove all appropriate knockouts from terminal boxes, partic-
ularly terminal box end knockouts when installing continuous
run heating. (See Figure 3).
4. Mount the back panel to the wall using suitable fasteners (not
supplied). Should the wall surface be uneven, secure the heater
backplate to the high spots only to avoid a distorted appearance.
Draft Barrier Heater Installation (Floor)
1. Unpack the heater and pedestal(s) from the carton (The
pedestals are packed at the end of carton) and lift the front/top
panels up and off the heater.
2. Disassemble the pedestal base from the pedestal pad.
3. Remove the desired terminal box cover(s) and supply wire
entry knockouts from the terminal boxes.
Figure 2
4. Secure a pedestal to each end of the heater bottom with #8
screws provided aligning the back and front edges of the pad
with the heater. This will align the supply entry knockout with
opening in pedestal pad.
TIP: Units longer than 4 feet will be provided with 3 or more
pedestals. The extra pedestals should be used to support the
middle of heaters.
5. Place heater on the pedestal base(s) and tighten all screws.
TIP: The height of the heater can be adjusted on the pedestal to
aid in leveling the heater by loosening the securing bolt at the
side of the pedestals.
6. Remove the terminal box cover and proceed to wiring instructions.
Figure 3
WIRING
and ground continuity. Do not exceed the allowable number of
conductors allowed by the National electrical code.
Ground Continuity —
WARNING: Hazard of Electric Shock. Any installa-
tion involving electric heaters must be effectively
grounded in accordance with the National
Electrical Code to eliminate shock hazard.
Prior To Installation —
WARNING: Hazard of Electric Shock. Disconnect all
power before installing heater.
Figure 4
1. All branch circuit and service supply wiring must be complet-
ed to the heater terminal box location.
2. Check heater nameplate ratings to be sure heater voltage is
Note: See Table 3 for recommended service supply wire sizes.
same as service supply.
3. Service supply entry is usually made to one heater terminal box
(see Figure 3) with through wiring (Factory Installed) being
used for interconnection of all heaters in a continuous run
installation.
4. Knockouts are provided at the back, bottom and ends of all
heater backs (see Figure 3). Terminal boxes are located at both
ends of every heater.
Note: When heaters are mounted end to end, remove the finishing
end plate, install a chase nipple and locknut in the terminal box
end knockout to ensure grounding continuity and to protect the
wiring.
Where heaters are spaced apart, remove the finishing end plate,
and use rigid conduit (Provided by customer) for through wiring
WIRING
Table 3: Service Supply Wiring Sizes
Recommended Minimum supply wire sizes are listed in the table
below:
Table 4: Terminal Box Volumes (Cubic Inches)
Heater Style
Left Hand Box
4” Wide
Right Hand Box
5” Wide
Maximum Watts Per Circuit Using 75 Degree C. Wire
Rough In
CAF-6, CCAS-8
33.25
41.50
Wire Size
120V
208V
240V 277V
347V
480V
600V
3. Do a final and complete check of all wiring, then replace the
terminal box covers being careful not to pinch any wires.
4. The front/top panel may now be installed.
14
12
10
1440
1920
2880
2496
3328
4992
2880 3324
3840 4432
5760 6648
4164
5552
5760
7680
7200
9600
Copper
Wire
8328 11520 14400
WARNING: To prevent the risk of fire, do not oper-
ate the heater without the front/top panels in place.
1. Wire all heaters and controls in accordance with the appropri-
ate wiring diagram provided on page 4.
2. Run a ground jumper from the ground screw in one terminal
box to the ground screw in the adjacent terminal box. (See
Figure 4.)
5. Place the front panel over the flange of the bottom panel. Hook
the top back edge of the front panel over the back panel, and
snap onto the plastic clips.
WIRING DIAGRAMS
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
2150 N. RULON WHITE BLVD., OGDEN, UT 84404
Phone: 1-800-368-2493
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