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DIGI3U

Three-Zone, Universal Controller for

Gas/Electric or Heat Pump Applications

Installation Guide

Part #D3MAN

Zoning Systems

That’s all we do.

3-Zone

Controller

for the “RNC”

Market

October 2011

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Summary of Contents for DIGI3U

Page 1: ...DIGI3U Three Zone Universal Controller for Gas Electric or Heat Pump Applications Installation Guide Part D3MAN Zoning Systems That s all we do 3 Zone Controller for the RNC Market October 2011...

Page 2: ...the controller The resistor is used in place of the LAT for 2 zone Gas Electric installations that do not have a bypass When bypass is used the optional LAT leaving air sensor must be connected in pla...

Page 3: ...s LAT capacity control is not applied a field supplied freeze protection and high limit device must be installed to protect equipment This should only be applied to designs in which both zones are app...

Page 4: ...2 W WIRING GAS ELECTRIC DIGI3U S S terminals for LAT capacity control If not applied leave 1k ohm resistor in place and field supplied high and low limits should be added Transformer damper transforme...

Page 5: ...ition for unit energizing reversing valve for cool place in B position for unit energizing reversing valve in heat JP2 Heat Pump or Gas Electric jumper is used to configure controller Factory set for...

Page 6: ...12va per damper TR SERIES DAMPER M M 1 2 3 3 TR1 TR2 2 1 DIGI3U SYSTEM CONTROLLER ONE TO THREE TR SERIES DAMPERS Fused 24V 40VA Transformer Transformer and 2 amp fuse TR SERIES DAMPER M M 1 2 3 3 TR1...

Page 7: ...puts to furnace and dampers After all calls are satisfied controller will initiate a 3 minute purge During this time controller will not allow any calls for heat or cool Cool Operation without LAT If...

Page 8: ...n place to function in this mode Changeover Gas Electric While controller is operating in heat or cool if another thermostat places a call for the opposite mode a changeover sequence will begin The co...

Page 9: ...ter all calls for cooling are satisfied Y G and all damper LEDs will go off and controller will initiate a 3 minute purge During this time controller will not allow a call for heat or cool Heat Mode w...

Page 10: ...energized PWR Power LED orange On when DTHP4A is powered Flashing during capacity control cutout DPR Damper status LED red One per damper On when damper is closed Emergency Heat Operation To put the...

Page 11: ...control of the unit based upon thermostat input Occasionally software upgrades may become available If so the DIGI3U software can be field upgraded by changing this microcontroller F HVAC System Statu...

Page 12: ...on supports a synchronous 24V AC 60Hz 12VA motor and termi nal board The motor is designed for continuous full stall operation Special winding and heavy duty gearing provide for long motor life and ea...

Page 13: ...or to bypass more than 2000 CFM use the electronic bypass RECTANGULAR ROUND BAROMETRIC BYPASS BYPASS DAMPERS BAROMETRIC AIRFLOW 1 2 4 3 1 Damper Shaft 2 Lock Nut 3 Lever Arm 4 Counter Weight BAROMETR...

Page 14: ...Damper incorrectly wired Correct damper wiring Emergency Heat does not Work STAT 1 must make heat call in Emergency Heat Verify heat call STAT 2 and STAT 3 can make Emergency heat call after STAT 1 V...

Page 15: ...on and blower fan is running 15 Verify air is being delivered to zone 1 and not to any of the other zones 16 At zone 1 verify air is coming out of the register diffuser 17 At next zone a Verify air is...

Page 16: ...9963 Fax 714 898 6802 Visit our Web Site http www zonexsystems com PATENTED PRODUCT Zonex Systems reserves the right to discontinue or change at any time specifications or designs without notice and w...

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