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© 2012 Taco Electronic Solutions, Inc.

1

Installation Guide

502-035

HPU3 Water Source Heat Pump Controller

Self-Contained Interoperable Controller Model UCP-1

SUPERSEDES: New

EFFECTIVE: February 21, 2012

Plant ID: 001-4052

Table of Contents

 

HPU3  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2

Overview  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Purpose of This Guide . . . . . . . . . . . . . . . . . . . . . . . . .   2
Representations and Warranties  . . . . . . . . . . . . . . . . .   2
Applicable Documentation . . . . . . . . . . . . . . . . . . . . . .   3

Installation Instructions  . . . . . . . . . . . . . . . . . . . . . . 4
Precautions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Static Electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FCC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Before Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5

About this Document . . . . . . . . . . . . . . . . . . . . . . . . 5
Inspecting the Equipment  . . . . . . . . . . . . . . . . . . . . 5
What is Not Included with this Equipment . . . . . . . . 5
Equipment Location . . . . . . . . . . . . . . . . . . . . . . . . . 5
Selecting a Power Source . . . . . . . . . . . . . . . . . . . . 5

Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5

Mounting the Device  . . . . . . . . . . . . . . . . . . . . . . . . 6
Routing Cabling to the Device . . . . . . . . . . . . . . . . . 7
Grounding the Device  . . . . . . . . . . . . . . . . . . . . . . . 8

Wiring Information  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8

Connecting Input Devices . . . . . . . . . . . . . . . . . . . 10
Connecting Output Devices . . . . . . . . . . . . . . . . . . 11
Other Connections. . . . . . . . . . . . . . . . . . . . . . . . . 11

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12

Electrical  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14

Diagnostic LEDs  . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . 15

Summary of Contents for iWorX HPU3

Page 1: ...llation Instructions 4 Precautions 4 General 4 Static Electricity 4 Location 4 FCC Compliance 4 Before Installing 5 About this Document 5 Inspecting the Equipment 5 What is Not Included with this Equipment 5 Equipment Location 5 Selecting a Power Source 5 Installation 5 Mounting the Device 6 Routing Cabling to the Device 7 Grounding the Device 8 Wiring Information 8 Connecting Input Devices 10 Con...

Page 2: ...occupied heat and cool LONWORKS interface to building automation systems Equipment status input for additional safety interlocks High and Low Pressure Alarm inputs Thermostat with space temperature humidity temperature setpoint adjust fan override occupancy override Fan control energized on call for heating or cooling Automatic heat cool changeover Global unit enable for main plant synchronization...

Page 3: ... Technicians End user Provides instructions for setting up and using the iWorx HPU3 iWorx LCI2 Application Guide Doc ument No 505 002 Application Engineers Installers Service Personnel Start up Technicians End user Provides instructions for setting up and using the iWorx Local Control Interface iWorx LHP2 Application Guide Doc ument No 505 024 Application Engineers Installers Service Personnel Sta...

Page 4: ...or welding equipment This equipment is suitable for indoor use only Preferably or as required by National Electrical Code the unit is intended to be installed within an electrical control enclosure Operate where ambient temperatures do not exceed 140 F 60 C or fall below 32 F 0 C and relative humidity does not exceed 90 non condensing FCC Compliance This equipment has been tested and found to comp...

Page 5: ...in the ranges specified for this equipment The equipment must be installed within 500 feet of all input peripherals smoke detectors sensors etc that are con nected to the equipment Selecting a Power Source This equipment requires a UL recognized Class 2 external power source not supplied to operate The controller power input requires a voltage of 24 Volts AC To calculate power source current requi...

Page 6: ... 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 See Routing Cabling to the Device ...

Page 7: ...012 Taco Electronic Solutions Inc Figure 1 Mounting Dimensions Routing Cabling to the Device Cabling used to connect the power source and cabling used to connect the FTT 10A network must remain separated within the control enclosure and wiring conduit ...

Page 8: ... 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 WIRING INFORMATION WARNING Terminals 6 9 and 12 are connected internally on all HPU3 controllers Disconnect ALL power sources when installing or servicing this equipment to prev...

Page 9: ...iWorx HPU3 502 035 Effective February 21 2012 9 2012 Taco Electronic Solutions Inc Figure 3 HPU3 Wiring Example Power Sinking ...

Page 10: ...ch one wire from the thermostat to STAT T3 and the other wire to the adjacent common T4 Equipment Status EQS To connect the equipment switch to the digital input attach one wire of the contact to EQS T5 and the other wire to the adjacent common T6 This must be a dry contact normally open switch which closes when flow is detected If a flow proof switch is not installed the terminals should be conne...

Page 11: ...nd the other wire to the adjacent common T12 Connecting Output Devices Stage 1 Stage 2 S1 S2 The outputs for the stages must be connected to 24 VAC pilot relays if the load is greater than 1 Amp for each pump If the load is less than 1 Amp connect stage 1 to S1 T28 and adjacent COM T27 and connect stage 2 to S2 T26 and adjacent COM T27 Reversing Valve RV The output for the reversing valve must be ...

Page 12: ...puts Cabling twisted shielded pair 18 AWG recommended 500 feet max 152 meters Resolution 10 bit Stat Precon Type III 10K thermistor or 12 Volt nominal internally limited to 0 04 A SLink Supply Air Temp Precon Type III 10K thermistor Heat Pump Power Transducer 0 to 10 Volts DC Equipment Status High Pressure Alarm Low Pressure Alarm Dry Contact Normally Open 5 Volts DC Max Outputs Stage 1 Stage 2 Re...

Page 13: ...high 6 54 166 mm wide 1 75 deep 44 mm ABS Weight Controller Weight 0 70 pounds 0 32 kilograms Shipping Weight 1 0 pounds 0 46 kilograms Electronics Processor 3150 Neuron 10 MHz Flash 48 Kilobytes SRAM 8 Kilobytes Termination 0 197 5 0 mm Pluggable Terminal Blocks 14 22 AWG Environmental Temperature 32 F to 140 F 0 C to 60 C Humidity 0 to 90 non condensing Agency Listings UL Listed for US and Canad...

Page 14: ...on Status Solid green when running and configured by an LCI networking Flashing green when running and NOT configured by an LCI stand alone Solid red when a fault condition exists control shut down Blinking Red the controller has a device failure Solid Amber The controller has not received a LCI ping message in over 10 minutes and is part of a network Network Yellow while the controller is transmi...

Page 15: ... before proper operation can be restored The fan and staged pilot relays will not come on even though the LCI indicates it is on Ensure that the controller and output pilot relay have been powered 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 Space Temperature or Supply Air Temperature thermistor reading is...

Page 16: ...covered by this warranty TES products are not intended for use to sup port fire suppression systems life support sys tems critical care applications commercial aviation nuclear facilities or any other applica tions where product failure could lead to injury to person loss of life or catastrophic property damage and should not be sold for such pur poses If in doubt as to whether a particular produc...

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