Qmark DSH - Decorative Sill-Height Convectors - Manual (Page 3)

INSTALLATION INSTRUCTIONS
Rough-in Wiring
1. Run branch circuit of proper voltage and wire size to location
of left or right junction box as indicated on heater wiring dia-
gram. Basic heaters are prewired and can be connected to
branch circuit at either end. Heaters with controls are
prewired for connection to branch circuit at one end only
(refer to heater wiring diagram), however, heater can be
wired from opposite end by running wire through heater wire-
way.
2. If it is necessary to run wires through the heater wireway,
use Table B to size the field installed wiring.
3. The factory installed wires in the heater wireway can be
loaded up to 35 amps in CSH05 and DSH05 units, and up to
45 amps in, CSH05, CSH14, DSH07 and DSH14 units.
Refer to Table C and D for maximum length of heater run
when the heaters are connected in parallel.
TO REDUCE THE RISK OF FIRE AND ELECTRIC SHOCK
OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
1. Serious injury or death could result from electric shock.
Make sure electrical power supply circuit coming to heater
is disconnected at main disconnect or service panel before
installing this heater.
2. Wiring procedures and connections must be in accordance
with the National Electrical Code (NEC) and local codes.
Refer to Wiring Diagram on heater and Figure 8 as well as
Tables B and C. Make sure all electrical connections are
tight to prevent possible overheating. Use Copper Supply
Wire Only.
3. Verify the electrical power supply voltage matches the volt-
age rating as printed on the heater nameplate.
CAUTION - Never connect a heater to a voltage greater than
the nameplate voltage as this will damage the heater and
could cause a fire.
4. Remove and discard foam packing material inside heater
before installing or energizing the heater.
5. Do not install the heater against combustible low-density
cellulose fiberboard surfaces, against or below vinyl wall
coverings, or below any materials that may be damaged by
heat such as vinyl or plastic blinds, curtains, etc. If heater
must be installed against vinyl surfaces or surfaces that
may be damaged by heat, Standoff Kits Cat. No. S01 or
S02 must be used. Refer to installations instructions
provided with these kits when installing.
6. Do not install heater below an electrical convenience recep-
tacle (outlet).
7. CAUTION – Heater Operates at High Temperatures. Keep
Electrical Cords (including telephone and computer cables),
Drapes, and Other Furnishings Away From Heater. For effi-
cient and safe operation, we recommend maintaining a min-
imum of 6 inches (152 mm) clearance above and in front of
the heater at all times. See Clearances Chart for minimum
clearance requirements.
8. To reduce the risk of fire, do not store or use gasoline or
other flammable vapors or liquids in the vicinity of the
heater.
9. Do not install heater upside down or in any position other
than as shown in this manual.
10. Do not recess heater in wall or install heater inside any type
enclosure (unless specifically approved by the manufactur-
er) as this will cause heater to overheat and could create a
hazard.
11. When mounting heater, use care when drilling mounting
holes and mounting heater to building structure to avoid
damaging internal heater components. Be sure to loosen
mounting screws 1/4 to 3/4 turn to allow for expansion and
contraction.
12. Do not remove or bypass the safety limit control(s) as this
could allow heater to become a fire hazard – see heater
wiring diagram supplied with heater.
13. The factory installed wires inside wireway are used to con-
nect the built-in controls. Limit the maximum current to no
more than 35 amps for CSH05 and DSH05 units and 45
amps for CSH07, DSH07, CSH14 and DSH14 units. Refer
to instructions and current capacity rating as provided with
the accessory.
14. Heaters that are not installed end to end must have end
caps installed to cover exposed ends of heater. Heaters
joined together must have appropriate filler sections or
other approved assemblies (see Accessories Data listing
on Page 8) installed to cover exposed openings between
heaters.
15. All field wiring brought into the heater or any attached
accessories must be rated at least 75 °C.
16. Do not allow objects to be placed on top of heater as they
may be damaged or create a fire hazard.
17. Before energizing, make sure front cover is properly
installed onto the back housing along the entire length of
the heater – See Fig. 4. Do not operate heater without front
cover installed.
3
Maximum allowable current
Copper Maximum no.
wire size of wires Up to 3 4 to 6 7 thru 9
75º C in wireway Conductors Conductors Conductors
No. 12 AWG 9 11.5 amps 9.3 amps 8.1 amps
No. 10 AWG 8 17.4 amps 14.0 amps 12.1 amps
No. 8 AWG 4 24.0 amps 21.0 amps –
Table B. Sizing Field Installed Wiring
Watts/Ft. of Maximum allowable length of heater run (feet)
the heaters 120 Volts 208 Volts 240 Volts 277 Volts
125 33 58 67 77
188 22 38 44 51
250 16 29 33 38
Table C. Maximum Length of Heater Run
(CSH05-1Ø; DSH05-1Ø)
Note: For mix of watt densities, calculate amp draw. Do not
exceed values indicated in step 3 above.