Qmark DBA - Architectural Sill-Height Convection Heaters - Manual (Page 2)

Clearance Chart:
For safe and efficient operation, maintain at least the following
minimum clearances at all times:
Bottom of Heater to Finished Floor:
• Front Inlet Models: (max 600 watts per foot)
- May be installed on floor. However, for best performance,
install bottom of heater approximately 3 inches (76 mm) off floor.
• Bottom Inlet Models:
- 100-250 watts per foot – 1-3/4 inch (44 mm)
- 375-750 watts per foot – 3 inches (76 mm)
Top of Heater to Ceiling (all models):
- Minimum 36 inches (914 mm)
Top of Heater to Bottom of Drapes Above Heater:
- Minimum 12 inches (305 mm)
IMPORTANT NOTE: Certain fabrics and vinyl materials (such
as vinyl blinds) may become damaged by the heated air from
the heater and should not be installed above the heater.
Front of Heater to Full Length Drapes in Front of Heater:
- Minimum between bottom of drapes and floor – 2-1/2 inches
(64 mm)
- Minimum between top of drapes and ceiling – 1/2 inch (13
mm)
- Minimum between front of heater and nearest fold of drape –
2 inches (51 mm)
Top of Heater to Bottom of Window Sill:
- Minimum 12 inches (305 mm)
2
No. 12 AWG
No. 10 AWG
No. 8 AWG
9
8
4 11.5 Amps
17.4 Amps
24.0 Amps 9.3 Amps
14.0 Amps
21.0 Amps
8.1 Amps
12.1 Amps
-
Copper wire
size 90º C
Max. No.
wire installed
in wireway
Up to 3
conductors
4 to 6
conductors
7 to 9
conductors
Maximum Allowable Current
Table B. Sizing Field Installed Wiring
Catalog Length Watts Total Amperage
Number "L" per ft. Watts 120V 208V 240V 277V 347V 600V
02100 100 200 1.7 1.0 0.8 -- -- --
02125 28" 125 250 2.1 1.2 1.0 0.9 -- --
02150 (711mm) 150 300 2.5 1.4 1.3 1.1 -- --
02188 188 376 3.1 1.8 1.6 1.4 -- --
02250 250 500 4.2 2.4 2.1 1.8 1.4 --
03100 100 300 2.5 1.4 1.3 1.1 -- --
03125 3' 125 375 3.1 1.8 1.6 1.4 1.1 --
03150 (914mm) 150 450 3.8 2.2 1.9 1.6 1.3 --
03188 188 564 4.7 2.7 2.4 2.0 1.6 --
03250 250 750 6.3 3.6 3.1 2.7 2.2 --
04100 100 400 3.3 1.9 1.7 1.4 1.2 --
04125 4' 125 500 4.2 2.4 2.1 1.8 1.4 --
04150 (1219mm) 150 600 5.0 2.9 2.5 2.2 1.7 --
04188 188 752 6.3 3.6 3.1 2.7 2.2 1.3
04250 250 1000 8.3 4.8 4.2 3.6 2.9 1.7
05100 100 500 4.2 2.4 2.1 1.8 1.4 0.8
05125 5' 125 625 5.2 3.0 2.6 2.3 1.8 1.0
05150 (1524mm) 150 750 6.3 3.6 3.1 2.7 2.2 1.3
05188 188 940 7.8 4.5 3.9 3.4 2.7 1.6
05250 250 1250 10.4 6.0 5.2 4.5 3.6 2.1
06100 100 600 5.0 2.9 2.5 2.2 1.7 1.0
06125 6' 125 750 6.3 3.6 3.1 2.7 2.2 1.3
06150 (1829mm) 150 900 7.5 4.3 3.8 3.2 2.6 1.5
06188 188 1128 9.4 5.4 4.7 4.1 3.3 1.9
06250 250 1500 12.5 7.2 6.3 5.4 4.3 2.5
07100 100 700 -- 3.4 2.9 2.5 2.0 1.2
07125 7' 125 875 -- 4.2 3.6 3.2 2.5 1.5
07150 (2134mm) 150 1050 -- 5.0 4.4 3.8 3.0 1.8
07188 188 1316 -- 6.3 5.5 4.8 3.8 2.2
07250 250 1750 -- 8.4 7.3 6.3 5.0 2.9
08100 100 800 -- 3.8 3.3 2.9 2.3 1.3
08125 8' 125 1000 -- 4.8 4.2 3.6 2.9 1.7
08150 (2438mm) 150 1200 -- 5.8 5.0 4.3 3.5 2.0
08188 188 1504 -- 7.2 6.3 5.4 4.3 2.5
08250 250 2000 -- 9.6 8.3 7.2 5.8 3.3
09100 100 900 -- 4.3 3.8 3.2 2.6 1.5
09125 9' 125 1125 -- 5.4 4.7 4.1 3.2 1.9
09150 (2743mm) 150 1350 -- 6.5 5.6 4.9 3.9 2.3
09188 188 1692 -- 8.1 7.1 6.1 4.9 2.8
09250 250 2250 -- 10.8 9.4 8.1 6.5 3.8
10100 100 1000 -- 4.8 4.2 3.6 2.9 1.7
10125 10' 125 1250 -- 6.0 5.2 4.5 3.6 2.1
10150 (3048mm) 150 1500 -- 7.2 6.3 5.4 4.3 2.5
10188 188 1880 -- 9.0 7.8 6.8 5.4 3.1
10250 250 2500 -- 12.0 10.4 9.0 7.2 4.2
Table A - DBA & SHA (one element)
Amperage
Catalog Length Watts Total 208V 240V 277V 347V 600V
Number "L" per ft. Watts 1 Ph 3 Ph 1 Ph 3 Ph 1 Ph 1 Ph 1 Ph 3 Ph
02375 375 750 3.6 - 3.1 - 2.7 - - -
02500 28" 500 1000 4.8 - 4.2 - 3.6 2.9 - -
02600 (711mm) 600 1200 5.8 3.3 5.0 2.9 4.3 - - -
02750* 750 1500 7.2 4.2 6.3 3.6 5.4 4.3 - -
03375 375 1125 5.4 - 4.7 - 4.1 - - -
03500 3' 500 1500 7.2 - 6.3 - 5.4 4.3 - -
03600 (914mm) 600 1800 8.7 5.0 7.5 4.3 6.5 - - -
03750* 750 2250 10.8 6.3 9.4 5.4 8.1 6.5 - -
04375 375 1500 7.2 - 6.3 - 5.4 4.3 - -
04500 4' 500 2000 9.6 - 8.3 - 7.2 5.8 3.3 -
04600 (1219mm) 600 2400 11.5 6.7 10.0 5.8 8.7 6.9 - -
04750* 750 3000 14.4 8.3 12.5 7.2 10.8 8.6 5.0 2.9
05375 375 1875 9.0 - 7.8 - 6.8 5.4 3.1 -
05500 5' 500 2500 12.0 - 10.4 - 9.0 7.2 4.2 -
05600 (1524mm) 600 3000 14.4 8.3 12.5 7.2 10.8 8.6 5.0 2.9
05750* 750 3750 18.0 10.4 15.6 9.0 13.5 10.8 6.3 3.6
06375 375 2250 10.8 - 9.4 - 8.1 6.5 3.8 -
06500 6' 500 3000 14.4 - 12.5 - 10.8 8.6 5.0 -
06600 (1829mm) 600 3600 17.3 10.0 15.0 8.7 13.0 10.4 6.0 3.5
06750* 750 4500 21.6 12.5 18.8 10.8 16.2 13.0 7.5 4.3
07375 375 2625 12.6 - 10.9 - 9.5 7.6 4.4 -
07500 7' 500 3500 16.8 - 14.6 - 12.6 10.1 5.8 -
07600 (2134mm) 600 4200 20.2 11.7 17.5 10.1 15.2 12.1 7.0 4.0
07750* 750 5250 25.2 14.6 21.9 12.6 19.0 15.1 8.8 5.1
08375 375 3000 14.4 - 12.5 - 10.8 8.6 5.0 -
08500 8' 500 4000 19.2 - 16.7 - 14.4 11.5 6.7 -
08600 (2438mm) 600 4800 23.1 13.3 20.0 11.6 17.3 13.8 8.0 4.6
08750* 750 6000 28.8 16.7 25.0 14.5 21.7 17.3 10.0 5.8
09375 375 3375 16.2 - 14.1 - 12.2 9.7 5.6 -
09500 9' 500 4500 21.6 - 18.8 - 16.2 13.0 7.5 -
09600 (2743mm) 600 5400 26.0 15.0 22.5 13.0 19.5 15.6 9.0 5.2
09750* 750 6750 32.5 18.8 28.1 16.3 24.4 19.5 11.3 6.5
10375 375 3750 18.0 - 15.6 - 13.5 10.8 6.3 -
10500 10' 500 5000 24.0 - 20.8 - 18.1 14.4 8.3 -
10600 (3048mm) 600 6000 28.8 16.7 25.0 14.5 21.7 17.3 10.0 5.8
10750* 750 7500 36.1 20.8 31.3 18.1 27.1 21.6 12.5 7.2
SHA (two and three element)
*Bottom inlet only
Table C. Maximum Length of Heater Run
Watts/Ft Max. allowable length of heater run in feet (meters)
of 120V 208V 240V 277V 347V 600V
Heaters 1 Ph 1 Ph 3 Ph 1 Ph 3 Ph 1 Ph 1 Ph 1 Ph 3 Ph
100 54 (16) 93 (28) - 108 (33) - 124 (38) 156 (47) 270 (82) 467 (142)
125 43 (13) 74 (23) - 86 (26) - 99 (30) 125 (38) 216 (66) 373 (113)
150 36 (11) 62 (19) - 72 (22) - 83 (25) 104 (32) 180 (55) 311 (95)
188 28 (9) 49 (15) - 57 (17) - 66 (20) 83 (25) 146 (45) 248 (76)
250 21 (6) 37 (11) - 43 (13) - 49 (15) 62 (19) 108 (33) 186 (57)
375 - 34 (7) - 28 (9) - 33 (10) 42 (13) 72 (22) 125 (38)
500 - 18 (5) - 21 (6) - 24 (7) 31 (9) 54 (16) 93 (28)
600 - 15 (5) 27 (8) 18 (5) 31 (9) 20 (6) 26 (8) 45 (14) 78 (24)
750 - 12 (4) 21 (6) 14 (4) 24 (7) 16 (5) 21 (6) 36 (11) 62 (19)