Submittal Sheet

QCH SERIES
470 Beauty Spot Rd. E, Bennettsville, SC 29512
visit www.qmarkmep.com for more info
ARCHITECT’S AND ENGINEER’S
SPECIFICATIONS*
The heating equipment shall include a ceiling mounted QCH electric
automatic fan forced heater suitable for large area heating as
manufactured by QMark, A Marley Engineered Products Brand,
Bennettsville, SC. The heater shall be designed for ceiling surface
or recessed mounting. Heaters shall be UL Listed.
HEATER ASSEMBLY: The heater assembly, which fits in the back
box, shall consist of a fan panel upon which is mounted all of the
operational parts of the heater.
HEATING ELEMENT: The heating element shall be of the non-
glowing design consisting of 80/20 NiCh resistance wire enclosed in
a steel sheath to which plate fins are copper-brazed. It shall be
warranted for 5 years.
FAN MOTOR: The fan motor shall be totally enclosed and
permanently lubricated.
FAN DELAY SWITCH: Fan control shall be of bi-metallic, snap-
action type and shall activate fan after heating element reaches
operating temperature. The fan shall continue to operate after the
thermostat is satisfied and until the heating element is cool.
THERMAL CUTOUT: A thermal cutout shall be built into the system
to shut off the heater in the event of overheating.
DISCONNECT SWITCH: A double-pole single throw disconnect
switch shall be factory installed for positive disconnect of power
supply. It will be completely concealed behind the faceplate.
BACK BOX: The back box shall be designed for duty as a recessed
rough-in box in either masonry or frame installations and is also used
with the surface mounting frame in surface mounting installations.
The back box shall be 20-gauge galvanized steel and shall contain
knockouts through which power leads are brought.
FACEPLATE: The louvered faceplate shall be of commercial grade,
cold-rolled steel, phosphatized, then electrostatically painted Navajo
White by a baked enamel process. The faceplate shall be secured
to the heating unit with screws.
THREE-PIECE DESIGN: The heater shall be made up of a back
box, a heater assembly and a faceplate.
SURFACE MOUNTING FRAME: The surface mounting frame,
designed to allow full surface mounting, shall be commercial grade
cold-rolled steel, phosphatized, then electrostatically painted Navajo
White by a baked enamel process.
*QMark reserves the right to change specifications without
prior notice.
DIMENSIONS
BACK BOX
(Rough-In Box)
(Front View)
MOTOR & FAN
FAN CONTROL
HIGH LIMIT
HEATING
ELEMENT
INNER FRAME
ASSEMBLY
(Back View)
(End View)
11
9-3/4
3/8
3-3/4
9
QCH-SM
SURFACE
MOUNTING
FRAME
(Front View)
QCH-SM
(Side View)
(Bottom View)
10-1/2
12-1/2
1-5/8
1-1/8
3-7/8
2-1/2
1-1/8
CATALOG NO. VOLTS WATTS* BTU/HR AMPS
QCH-1101
120 1000/500 3413 8.3
QCH-1151 120 1500/750 5120 12.5
QCH-1202 240/208 2000/1500 6826/5119 8.4/7.2
QCH-1207 277/240 2000/1500 6826/5119 7.2/6.3
ACCESSORIES
CATALOG NO. DESCRIPTION
QCH-SM Surface mounting sleeve
QCHS1 1” Semi-recessed frame
QCHS2 2” Semi-recessed frame
QCHTBF T-bar frame kit
*Factory wired for full wattage, filed convertible to half wattage.