Qmark CP - Electric Infrared Heating Control Panels - Manual (Page 2)

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WARNING: To reduce the risk of electric shock, personal
injury, or fire, read and understand the following instructions
and adhere to the special safety precautions:
1. These control panels must be installed by qualified personnel only.
If in doubt, consult with a licensed electrician.
2. All installation and wiring must conform to the National Electrical
Code (NEC) and all other local codes and ordinances.
3. These panels are not suitable for installation into hazardous, cor-
rosive, or wet atmospheres such as areas where flammable liq-
uids, corrosive chemicals, etc. are used or stored or in areas
where subject to exposure to rain or water spray.
4. These panels must be securely mounted to an interior wall to the
building framing or structural members. Use care when cutting or
drilling into walls to avoid damage to hidden wiring or other utili-
ties.
5. Refer to the wiring diagram provided on the interior control panel
door for special instructions for the particular panel you have.
6. All panels must be properly bonded to the building grounding sys-
tem by connection to the grounding terminal in the panel.
7. All wiring brought into the panel must be rated 600 volt, 75
degrees C minimum.
8. A main disconnect or circuit breaker is required to allow for the
disconnecting of power to the control panel.
9. Make sure all electrical power to the panel is disconnected before
attempting to install or service the panel. Do not depend on a ther-
mostat as the sole means for disconnecting the power. Always
disconnect power to control panel at main service panel and lock
power off so it cannot be accidentally turned on.
10.Always verify the electrical power coming to the control panel and
supplying loads matches the rating of the panel and the loads. A
mismatch could cause permanent damage to the equipment or a
possible fire.
WARNING
!
INSTALLATION
1. Inspect the control panel for hidden damage and confirm it is
the type and size needed for the installation.
Note: If control panel or any optional accessories are
found to have freight damage, contact carrier and
file claim with carrier. Do not return panel to facto-
ry for freight damage claims.
2. Determine the mounting location on interior wall and securely
mount panel to building structure using care to avoid damage
to hidden utilities.
3. Route conduit and power supply wiring to control panel from
main service panel.
4. Route conduit and supply power wiring from control panel to
loads(s).
5. Install any optional or remote control devices as required and
install wiring to control panel as required (see wiring diagram
on inside of control panel).
6. Determine branch circuit and load fusing in accordance with
the NEC (see also LOAD FUSING).
7. After installation, check for proper operation of all loads and
controls.
LOAD FUSING
Provide appropriate size and type of fuses for the type of load.
The fuse blocks provided in control panels with multiple contac-
tors for load fusing are for type J, maximum 60 Amp, 600 Volt.
When using control panel to operate quartz lamp infrared heaters,
to allow for high starting current, branch circuit protection must be
of the TIME DELAY TYPE. For other types of infrared heat(quartz
tube and metal sheath), fast acting fuses are acceptable. (Refer
to the NEC).
The NEC requires a maximum branch circuit fusing for infrared
equipment of 50 Amps. The total connected infrared heating load
must not exceed 80% of the overcurrent device rating. Heaters
other than infrared types with supplemental fusing can be fused
up to 60 Amps for a total load of 48 Amps. The same is true for
motor loads or combination loads.
Circuits that need less than 35 Amp rated fuses will require the
use of reducers which will allow the use of 30 Amp and lower Amp
rated fuses to be mounted in 60 Amp rated fuse blocks. As an
option, increasing the wire size and thus the ampacity of the wires
used from the control panel to the load will allow the use of 35
Amp fuses as a minimum.
For the reasons noted above, and due to the many possible
installation combinations, load fusing is not provided with these
control panels. The user must determine the type and ratings for
the applicable fusing for the installation.
OPTIONAL CONTROLS AND ACCESSORIES:
REMOTE THERMOSTATS AND CONTROL DEVICES
The Marley Power Control Panels are provided with contactors to
switch the power to the heating load(s). the means of activating
these contactors may be by whatever means appropriated for the
application (either 24 or 120 volts - see wiring diagram in panel).
It is possible for a wall type thermostat to be used with infrared
heaters used indoors. However, care must be given to the loca-
tion of the thermostat so it will operate properly. Avoid locating the
thermostat in direct exposure to the rays from infrared heaters. A
shield between the thermostat and the heaters may work well.
Thermostats are available in single and two stage. Two stage
models are generally considered to give more economical results
in many installations.
Marley Power Control Panels are provided with terminal blocks
that allow for the connection of remote thermostats or controllers.
Multi-contactor panels are provided with terminal blocks to allow
for connecting of a two stage thermostat. The contactors are
divided equally between the two stages.
PERCENTAGE TIMER
The single contactor control panel with a suffix PT in its Model
Number (i.e. CP404801PT) is provided with a percentage timing
control device. This is a continuing controller that turns ON and
OFF according to a preset time period. The time period for these
controllers is two minutes. Dial is set by choosing a percentage of
ON time. OFF time will then be the remainder of time on the two
minute cycle. EXAMPLE: Setting dial at 50% will activate the
heaters for one minute and deactivate for one minute for every
two minute cycle. 75% setting will activate the heater for one
minute and thirty seconds and deactivate for thirty seconds.
USAGE: This is used for spot heating especially in areas where
no warm air build up can be expected. The use of a remote
thermostat with this model panel will allow for total area heat
control. The setting of the thermostat and the dial setting on the
percentage timer can be coordinated to maintain a specific com-
fort level. The two minute cycling of the percentage timer will
only come ON during such times that the thermostat is calling
for heat. The Percentage Timer option is not for use with Quartz
Lamp Heaters.