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iWorx® HPU Series

502-025, Effective: April 17, 2013

© 2013 Taco Electronic Solutions, Inc.

Static Electricity

Static charges produce voltages that can damage this equipment. Follow these static electricity precautions when handling 
this equipment.

• Work in a static free area.
• Touch a known, securely grounded object to discharge any charge you may have accumulated.
• Use a wrist strap when handling printed circuit boards. The strap must be secured to earth ground.

FCC Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the 
FCC rules. These limits are designed to provide reasonable protection against harmful interference. This equipment can 
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. 
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the 
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to a power source different from that to which the receiver is connected.
• Consult the equipment supplier or an experienced radio/TV technician for help.

You are cautioned that any changes or modifications to this equipment not expressly approved in these instructions could 
void your authority to operate this equipment in the United States.

INSTALLATION

Warning:

 Electrical shock hazard. To prevent electrical shock or equipment damage, disconnect 

ALL

 power 

sources to controllers and loads before installing or servicing this equipment or modifying any wiring.

Mounting the Device

1.Select a mounting location. Enclosure mounting is recommended. 
2.Hold the controller on the panel you wish to mount it on. With a marker or pencil mark the mounting locations on the 

panel. 

3.Using a small drill bit pre-drill the mounting holes. 
4.Using two #6 pan head screws, mount the controller to the panel. 
5.Wire the controller. 

Grounding the Device

The ground terminal (T40) must be securely connected to earth ground. Failure to properly ground this equip-
ment will result in improper operation. Improper grounding may also increase the risk of electrical shock and 
may increase the possibility of interference with radio/TV reception.

For best performance, connect the power supply common terminal (T38) to the same external point as the 
ground terminal (T40).

Power 

Requires:

 24VAC (20VAC to 28VAC), requires an external Class 2 supply

Consumes:

 7.2W with no external loads, maximum limited by the Class 2 supply rating

Summary of Contents for iWorx HPU2

Page 1: ...internally limited to 0 04 A TS300 Series Electrical Outputs Modulated Fan HPU3 only Analog 0 10 Vdc 2K Ohm minimum load 8 bit resolution Stage 1 Stage 2 Reversing Valve Fan Dehumidification HPU3 only...

Page 2: ...lass 2 external power source not supplied to operate The controller power input requires a voltage of 24 Volts AC To calculate power source current requirements add the power consumption of all periph...

Page 3: ...onnect the equipment to a power source different from that to which the receiver is connected Consult the equipment supplier or an experienced radio TV technician for help You are cautioned that any c...

Page 4: ...iWorx HPU Series 4 502 025 Effective April 17 2013 2013 Taco Electronic Solutions Inc...

Page 5: ...iWorx HPU Series 502 025 Effective April 17 2013 5 2013 Taco Electronic Solutions Inc...

Page 6: ...be shorted Setup Instructions 1 Press Controllers from main screen 2 Select required HPU from controller list and press appropriate controller 3 Press All Settings 4 Press Thermostat 5 The Thermostat...

Page 7: ...p Stages 9 The Comp Stages menu opens a Select number of Stages of equipment 1 or 2 b Select the stage Control Band in degrees Cannot be set to 0 c Select the Stage Time in minutes Cannot be set to 0...

Page 8: ...iWorx HPU Series 8 502 025 Effective April 17 2013 2013 Taco Electronic Solutions Inc...

Page 9: ...iWorx HPU Series 502 025 Effective April 17 2013 9 2013 Taco Electronic Solutions Inc...

Page 10: ...shorted Setup Instructions 1 Press Controllers from main screen 2 Select required HPU3 from controller list and press appropriate controller 3 Press All Settings 4 Press Dehumidification 5 The Dehumid...

Page 11: ...s 1 Press Controllers from main screen 2 Select required HPU3 from controller list and press appropriate controller 3 Press All Settings 4 Press Next 3 5 Press Mod Fan Settings 6 The Mod Fan Settings...

Page 12: ...lot relay have been pow ered with 24 VAC and the output has been correctly wired to the coil of the pilot relay Also ensure that the pilot relay has a 24 VAC coil The 10K thermistor reading is at its...

Page 13: ...ormation please refer to the last page of this Document for the company s Limited Warranty Statement which is also issued with the product or available at www taco hvac com Notes Description Audience...

Page 14: ...iWorx HPU Series 14 502 025 Effective April 17 2013 2013 Taco Electronic Solutions Inc...

Page 15: ...iWorx HPU Series 502 025 Effective April 17 2013 15 2013 Taco Electronic Solutions Inc...

Page 16: ...be covered by this warranty TES products are not intended for use to support fire suppression systems life support systems critical care applications commercial aviation nuclear facilities or any othe...

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