Bard PA13421-A, PA13421-B, PA13481-A, PA13481-B, PA13601-A, PA13601-B Unit Control Panel, Thermostat Subbase

Manual 2100-467

Page 14 of 23

HEAT ON UNITS WITH 15 OR MORE KW

MIS-2149

Unit 24V

Block

CGR Y1B

W1 W2 LE

Y1CGR W1

BY2

Terminal

W2 W3

PLDE

BW1

Unit Control Panel

T8400C1313

IF93-380

T8511G1070

REMOVE JUMPER FOR 2 STAGE ELECTRIC

FIGURE 6

LOW VOLTAGE WIRING

Contents

Main CONTENTS Getting Other Information and Publications FOR MORE INFORMATION, CONTACT THESE PUBLISHERS: GENERAL INSTRUCTIONS IMPORTANT SHIPPING DAMAGE GENERAL FIELD INSTALLED HEATER PACKAGES (OPTIONAL) * VS = Variable Speed Programmable Motor Page Manual 2100-467 TABLE 4 OPTIONAL FIELD INSTALLED ELECTRIC HEATER TABLE conductor wires in accordance with the National Electrical Code and all existing local codes. Unit Dimension Chart INSTALLATION LOCATION TYPICAL INSTALLATIONS Air Inlet Building Side View Top View Supply Duct Return Duct * * CONDENSATE DRAIN TRAP AIR FILTERS TRANSFORMER TAPS WIRING MAIN POWER WIRING 24V LOW VOLTAGE CONTROL CIRCUIT THERMOSTATS Unit Control Panel Thermostat Subbase START UP TOPPING OFF SYSTEM CHARGE SAFETY PRACTICES: START UP NOTES START UP AND OPERATION THREE PHASE SCROLL COMPRESSOR START UP INFORMATION SEQUENCE OF OPERATION INDOOR BLOWER MOTOR COMPRESSOR CONTROL MODULE ADJUSTMENTS LOW AMBIENT CONTROL FAN BLADE SETTINGS "B" SERVICE AND TROUBLESHOOTING SERVICE HINTS PRESSURE SERVICE PORTS REFRIGERANT CHARGE SUCTION AND DISCHARGE TUBE BRAZING TROUBLESHOOTING GE ECM MOTORS Symptom Cause/Procedure Do Dont Moisture Check Comfort Check TROUBLESHOOTING GE ECM MOTORS Contd. Replacing ECM Control Module (Continued on Page 23 in Table 12) TABLE 11 PRESSURE TABLE COOLING Page 23 of 23 TABLE 12 PRESSURE TABLE COOLING