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American Standard YK-IOM-2, Installation Operation & Maintenance

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American Standard YK-IOM-2 Installation Operation & Maintenance Download Page 18

18

Figure 11B
Conventional Thermostat Interconnections

Summary of Contents for YK-IOM-2

Page 1: ...ould be done by qualified experienced technicians American Standard Inc 2000 Voyager TM Packaged Gas Electric 085 thru 250 Units INSTALLATION OPERATION MAINTENANCE Customer Property Contains wiring se...

Page 2: ...nstallation 14 Evaporator Fan Adjustment 14 Compressors 16 Pre Start Quick Check List 19 Power up Initialization 20 Unitary Control Processor UCP 20 Manifold Pressure 20 Final Installation Checklist 2...

Page 3: ...perature sensing function to the UCP Ignition Control Module There are two LED s located in the Ignition Control Module that monitor the operating status of the heater during the vari ous operating st...

Page 4: ...and control will revert to the zone sensor To terminate the test mode cycle the unit power at the unit disconnect Resistance Test Mode The resistance test mode is initiated by applying the appropri a...

Page 5: ...r Horizontal HORIZONTAL UNIT SI mm REAR VIEW SHOWING DUCT OPENINGS FOR HORIZONTAL AIR FLOW UNITS A B C D E F YK 085C 100C 406 413 510 76 162 914 YK 100B 125C 571 457 437 51 100 1053 YK 155B 175C 673 4...

Page 6: ...59 1509 2267 51 357 25 205 1205 1A YK 155B 175C 1692 1600 46 530 435 724 2588 1702 2597 51 357 25 191 1410 1A YK 200B 250B 2048 1956 46 565 591 725 2969 2057 2977 51 357 25 191 1765 Figure 1B Curb Dim...

Page 7: ...low or Horizontal Note Corner weights are given for information only Unit is to be supported continuously by curb or equivalent frame support Unit Support If unit is to be roof mounted check building...

Page 8: ...o closer than two feet from the unit to minimize noise and resistance Attaching Horizontal Ductwork to Unit All conditioned air ductwork should be insulated to mini mize heating and cooling duct losse...

Page 9: ...e K5 relay The burner fan then switches into high speed and the heating capacity is raised to maximum When the temperature of the zone has reached the setpoint the UCP de engerizes the relays K5 K6 H...

Page 10: ...10 Figure 5 Figure 6 Detail of the Gas Section...

Page 11: ...h due to electrical shock or contact with moving parts Measure the negative pressure downstream of the gas unit Connect a flexible hose to the gas unit branch connection and connect as electronic pres...

Page 12: ...onditioner 50 Hz EEC Voyager G20 41 4 92 49 1 91 70 6 90 77 4 91 G25 35 0 92 38 3 89 59 4 88 60 3 90 G31 37 7 92 48 6 90 57 3 88 78 2 92 YK 063CD X YK 073CD X YK 073DD X YK 085CD X YK 089CD X YK 100CD...

Page 13: ...Gas Flow 15 C 1013 mbar m3 h 4 7 5 3 8 3 8 2 Heat Rate kW 38 0 43 0 67 4 67 0 Reduce Rate Gas Flow 15 C 1013 mbar m3 h 4 5 4 9 7 8 7 9 Heat Rate kW 36 5 40 0 63 4 64 0 Natural Gas G31 30 37ou 50 mbar...

Page 14: ...AND ADJUSTED IF REQUIRED TO A NEGATIVE 50Pa 0 2 OF WATER COLUMN NEVER ADJUST THE REGULATOR TO A POSITIVE PRESSURE Manifold Pressure The unit manifold pressure regulator located on the gas valve is fa...

Page 15: ...cor dance with national and local codes Power Wiring The power supply lines must be run in weather tight conduit to the disconnect and into the bottom of the unit control box Provide strain relief for...

Page 16: ...ow 1 2 3 etc Connections should be made using 1 to 1 2 to 2 3 to 3 and so on See following example Zone Temperature Sensor Terminal Strip Terminal Terminal I D 1 ZTEMP 2 SIGNAL COMMON 3 CSP 4 MODE 5 H...

Page 17: ...17 Figure 11A Zone Sensor Interconnections...

Page 18: ...18 Figure 11B Conventional Thermostat Interconnections...

Page 19: ...plying unit After all electrical wiring is complete SET THE ZONE SEN SOR SWITCH TO THE OFF POSITION AND THE FAN SWITCH TO AUTO SO COMPRESSOR AND FAN WILL NOT RUN and apply power by closing the system...

Page 20: ...lock out Reset by disconnecting and re applying unit power Unit will start in the high fire mode After a short run cycle it will switch to low fire Note Blue smoke produced by the heat exchanger durin...

Page 21: ...this unit from the roof use the Test mode procedure on page 3 and 4 of this manual Operating Pressures After the unit has operated in the cooling mode for a short pe riod of time install pressure gaug...

Page 22: ...ons warrant Examine these areas of unit 1 Filters for cleaning or replacement 2 Motors and drive system components 3 Economizer gaskets for possible replacement 4 Condenser coils for cleaning 5 Safety...

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