CCI Thermal Technologies OKT - Percentage Timer (Input Controller) - Manuel

ISO 9001
1.0 DESCRIPTION
1.1 Percentage timers (input controllers) are used mainly for
pulsing power to tubular element type radiant heaters.
They should not be used for quartz lamp or quartz tube
type radiant heaters.
1.2 The OKT percentage timer operates by switching the
supply voltage On and Off over a total time cycle of 30
seconds. The dial reads percentage On time. If the dial is
set to 30, the output will be On for 12 seconds and Off for
18 seconds, i.e. 40% of 30 seconds On and balance of
30 seconds Off.
1.3 A synchronous motor driven cam closes a snap action
switch for a percentage of the total time cycle. Settings
may be made or changed with the timer operating.
Switching to the Off portion of the cycle occurs as the
progress pointer passes the 100% dial position.
1.4 The OKT percentage timer features a black set point
needle, a red progress pointer, and an isolated pilot light.
1.5 A unique feature of this timer is its plug-in mounting.
Several gasketed surfaces ensure resistance to dust and
moisture as found in normal industrial environments.
2.0 INSTALLATION
2.1 The OKT is designed for mounting in a panel or an
enclosure. Mounting dimensions and cutout sizes are
shown below.
2.2 To install, loosen locking screw, lift handle and pull control
from enclosure. Make panel cutout and mount the OKT
terminal box with the included hardware. Ensure that the
gasket supplied is intstalled between the mounting plate
of the terminal enclosure and your panel.
3.0 WIRING
3.1 Control power for the motor is 120V 60Hz 4Va. The load
contacts can be wired for a 120V pilot duty control circuit
or wired independently to a separate power supply as
follows:
10 Amps at 120/240VAC
1/3 HP at 125/250VAC
1/2 Amp at 125VDC
1/4 Amp at 250 VDC
3.2 Rear terminals connections are as follows:
3.3 Typical pilot duty wiring is as follows.
Although both normally open and normally closed
contacts are brought out to the rear terminals, use
terminals 3 and 5 only for percentage “on” heating
operation.
4.0 OPERATION
4.1 Adjust the knob and black pointer to the percent “on” time
desired. When the system is energized, the red progress
pointer will rotate counter clockwise. When the red
pointer meets the black pointer the load is energized and
the pilot light is illuminated (if wired as per 3.3). When the
red pointer passes 100, the load will de-energize.
4.2 While energized and running, adjustments to the time can
be made.
4.3 Allow sufficient time for the system to reach equilibrium
before making adjustments.
MI122 REV. 5
CCI Thermal Technologies Inc. 2721 Plymouth Drive, Oakville, ON L6H 5R5 Tel. (905) 829-4422 Fax (905) 829-4430
www.ccithermal.com
ISO 9001:2000
MI122 REV. 5
CCI Thermal Technologies Inc. 2721 Plymouth Drive, Oakville, ON L6H 5R5 Tel. (905) 829-4422 Fax (905) 829-4430
www.ccithermal.com
ISO 9001:2000
MI122 REV. 5
CCI Thermal Technologies Inc. 2721 Plymouth Drive, Oakville, ON L6H 5R5 Tel. (905) 829-4422 Fax (905) 829-4430
www.ccithermal.com
ISO 9001:2000
Type OKT Percentage Timer
Installation Instructions
Email: [email protected] www.ccithermal.com
Date of Issue: May 2013
Part No. MI122 Rev.5.01
Printed in Canada