Chromalox CMB-3A Installation, Operation And Renewal Parts Identification

RENEWAL PARTS IDENTIFICATION
Type CMB Electric Steam Generator
IMPORTANT – This data file contains the National Board Registration Certificate approving your generator. It must be kept near the generator at all times.
Boiler Serial # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Circuit Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Circuit Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
National Board # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amps. . . . . . . . . . . . . . . Phase . . . . . . . . . . . Cy . . . . . . . . . . . . . . .
WARNING: Hazard of Electric Shock. Any installa-
tion involving electric generators must be effec-
tively grounded in accordance with the National
Electrical Code to eliminate shock hazard.
1. Locate unit on level floor or platform.
2. Connect water line to tagged fitting on the water control feeder.
3. The incoming water supply must be 10 pounds greater than the
operating pressure. Otherwise, a high pressure feed (pump)
must be used.
4. Wire unit following wiring diagrams supplied. (See recom-
mendations on safety switches and fusing.)
5. Connect steam line with an outlet valve to boiler steam outlet.
Chromalox recommends using a globe valve one pipe size
smaller than steam line to limit any pressure drops (surges) that
may occur during start-up.
6. Open all gauge valves and steam outlet valve. Keep drain valve
closed.
7. Turn on watter supply; water will reach operation level auto-
matically.
8. Close steam outlet valves.
9. Set thermostat for desired steam pressure (see Table 1).
10. Turn boiler switch to ON position, pilot light will go on.
© 2010 Chromalox, Inc.
Installation, Operation
and
CMB-3A
GENERAL
0 – 90 PSI
Specifications —
Output
Lbs./Hr.
Vol. AT †
Model kW (Gals.) 212°F
3 1.6
3 1.6
CMB-3A
3 1.6
3 1.6
6 6 18
CMB-6A 6 6 18
6 6 18
9 6 27
CMB-9A 9 6 27
9 6 27
12 6 36
CMB-12A 12 6 36
12 6 36
15 6 45
CMB-15A 15 6 45
15 6 45
† Assuming Feedwater at 50°F.
Note — All Models listed with Underwriters Laboratories Inc.
Generator will Build up to desired
pressure and shut off automati-
cally.
11. Open steam outlet valves and
use steam as needed.
12. Generator should be blown
down daily (see Blowdown
instructions).
13. Chromalox generators are pretest-
ed before shipment. No internal
wiring or piping is required.
14. Substitution of components or
modification of wiring systems
without consult of manufacturer
voids the warranty.
15. Power must be off when genera-
tor is drained.
16. Purchaser should use a safety
switch between the main power
source and the steam generator.
The safety switch should use cir-
cuit breakers or fuses.
4
(Supersedes PQ400-8)
JULY, 2009
Single Phase
Power
Amperes CCT.
Volts Drawn Diag.
9 120 25 1
9 208 14.4 2
9 240 12.5 2
9 480 6.3 2
208 28.8 4
240 24 4
480 125 4
208 43.3 6
240 37.5 5
480 18.8 4
208 57.7 7
240 50 7
480 25 5
208 72.1 7
240 62.5 7
480 31.2 5
Table 1 —
Temperature-Pressure
Relationship for Steam
Gauge Pressure
(psig)
0
1
2
3
4
5
6
7
8
9
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
3001H
PQ400-9
161-048643-001
Three Phase
Power
Amperes CCT.
Drawn Diag.
NA NA
8.3 3
7.2 3
3.6 3
16.7 8
14.4 8
7.2 8
25 8
21.7 8
10.8 8
33.3 8
28.9 8
14.4 8
41.6 9
36.1 8
18 8
Temperature
(°F)
212
216
219
222
224
227
230
232
235
237
240
250
259
267
274
281
287
292
298
303
307
312
316
320
324
328
331