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ICM Controls ICM330 Installation, Operation & Application Manual

ICM Controls ICM330 Installation, Operation & Application Manual

Head pressure control with optional heat pump override, regulates head pressure via temperature or pressure input

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ICM330
Head Pressure Control with
Optional Heat Pump Override
Regulates head pressure via temperature or pressure input
Installation, Operation & Application Guide
For more information on our complete range of American-made
products – plus wiring diagrams, troubleshooting tips and more,
visit us at www.icmcontrols.com
Installation of the ICM330 shall be performed by trained technicians only. Adhere to all local and national electric codes.
Disconnect all power to the system before making any connections.
• Line voltage: 120, 208, 240, 277, and 480 VAC
• Control voltage: 18-30 VAC
• Current: 4 amps maximum
• Frequency: 50-60 Hz
• Operating temperature: -40ºF to +176ºF (-40°C to +75°C)
• Probes:
– Temperature: Thermistor, 10K ohm at 77°F (25°C)
– Pressure: ICM380 (ordered separately)
• Heat pump override: 24 VAC N.C. or N.O.
• Weight: 12 ounces (341 grams)
Note: T he ICM330 should be applied to motors and equipment that have been designated by their respective manufacturers as capable of being speed controlled.
• Mounting:
– Surface mount using (2) #8 screws
– It is recommended that the ICM330 be mounted away from the condenser exhaust air in order to maintain lower operating temperatures
Connections for ICM330 at 120/208/240/277 VAC
1. Remove power from system.
2. Field install a wire from Line 1 wire to 120/280 VAC terminal.
3. Cut Line 2 wire; affix motor side to Motor 2 terminal and line side to Line 2 terminal.
4. Make 24 VAC, probe and HP connections.
5. Verify wiring is correct.
6. Power up system and check operation.
Field Installed Wire
1. Only one probe type can be used at a time, temperature OR pressure.
2. A typical installation is shown in Appendix section. The temperature probe can be attached to the U-bend. Use the provided thermo-tape to secure the probe to the place of
attachment.
3. When using a pressure probe, install it on the discharge line transducer fitting.
4. A temperature or pressure probe is connected to ICM330 as shown in the respective wiring diagram below.
Temperature Probe
The Seller warrants its products against defects in material or workmanship for a period of one (1)
year from the date of manufacture. The liability of the Seller is limited, at its option, to repair, replace
or issue a non-case credit for the purchase prices of the goods which are provided to be defective.
The warranty and remedies set forth herein do not apply to any goods or parts thereof which have
been subjected to misuse including any use or application in violation of the Seller's instructions,
neglect, tampering, improper storage, incorrect installation or servicing not performed by the Seller.
In order to permit the Seller to properly administer the warranty, the Buyer shall: 1) Notify the Seller
promptly of any claim, submitting date code information or any other pertinent data as requested by
the Seller. 2) Permit the Seller to inspect and test the product claimed to be defective. Items claimed
to be defective and are determined by Seller to be non-defective are subject to a $30.00 per hour
inspection fee. This warranty constitutes the Seller's sole liability hereunder and is in lieu of any other
warranty expressed, implied or statutory. Unless otherwise stated in writing, Seller makes no warranty
that the goods depicted or described herein are fit for any particular purpose.
Caution!

Specifications

1. Remove power from system.
2. Field install a wire from Line 1 wire to 480 VAC terminal.
3. Cut Line 2 wire; affix motor side to Motor 2 terminal and line side to Line 2 terminal.
4. Make 24 VAC, probe and HP connections.
5. Verify wiring is correct.
6. Power up system and check operation.
Installing and Connecting the Probe
ONE-YEAR LIMITED WARRANTY
7313 William Barry Blvd., North Syracuse, NY 13212
(Toll Free) 800-365-5525
(Phone) 315-233-5266
www.icmcontrols.com
Connections for ICM330 at 480 VAC
Field
Installed
Wire
PRESSURE TRANSDUCER
(Fax) 315-233-5276
LIAF069
Example

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Summary of Contents for ICM Controls ICM330

  • Page 1: Specifications

    LIAF069 Caution! Installation of the ICM330 shall be performed by trained technicians only. Adhere to all local and national electric codes. Disconnect all power to the system before making any connections. Specifications • Line voltage: 120, 208, 240, 277, and 480 VAC • Control voltage: 18-30 VAC...
  • Page 2: Troubleshooting

    When using a temperature probe, disconnect it and use an ohmmeter to measure the resistance between the wires. It should match the chart in Appendix A. When using a pressure probe, with power applied to the control use a voltmeter to measure volts DC between GND and Vout. The reading should be according to the chart in Appendix B. The fuse is blown and/or signs of The unit has been miswired and may be permanently damaged. damage on the unit The fan cycles from ON to OFF Reduce hard start stetting to minimum needed to accelerate the fan motor. Excessive hard start causes large pressure drops by running too much cold air over the condenser. with little or no speed modulation Reduce cut out setting to minimum needed for the motor in use. Should the cycling persist, relocate the temperature probe up the condenser to increase sensitivity to temperature change and/or adjust the temperature set point. The high pressure switch trips off See “Unit fails to start” above Check the setpoint and reduce it if needed Appendix A Appendix B ICM330 Typical Installation Temperature vs. Probe Resistance Pressure vs. Voltage Line 1 Line Voltage Motor 1 °C °F Resistance (KΩ) Pressure (psig) Voltage (Vdc) 0° 32° 32.7 Line 2 5° 41°...