Servicing Table Of Contents - Daikin DP14UM Service Instructions Manual

SERVICING
S-1 Checking Voltage ........................................... 15
S-2 Checking Wiring ............................................. 15
S-3 Checking Thermostat and Wiring ................. 15
S-4 Checking Transformer and Control Circuit . 15
S-7 Checking Contactor and/or Relays ............... 16
S-8 Checking Contactor Contacts ....................... 16
S-9 Checking Fan Relay Contacts ......................... 16
S-12 Checking High Pressure Control ................. 17
S-13 Checking Low Pressure Control .................. 17
S-15 Checking Capacitor ...................................... 17
S-17A Resistance Check ......................................... 18
S-15B Capacitance Check ...................................... 18
S-16A Checking Fan And Blower Motor Windings
(Psc Motors) ........................................................ 18
S-16C Checking Ecm Motor Windings ................. 19
Checking Eem Motors .......................................... 19
Checking ECM Motors ......................................... 20
Checking ECM Motor Windings .......................... 20
S-17 Checking Compressor .................................. 21
S-17A Resistance Test ........................................... 21
S-17B Ground Test ............................................... 22
S-17C Unloader Test Procedure ......................... 22
S-17D Operation Test ........................................... 23
Locked Rotor Test ............................................... 23
S-18 Testing crankcase heater (Optional Item) ... 24
S-100 Refrigeration Repair Practice.................... 24
S-101 Leak Testing
(nitrogen or nitrogen-traced) ........................... 24
S-102 Evacuation .................................................. 24
S-103 Charging ..................................................... 25
10

SERVICING TABLE OF CONTENTS

S-104 Checking Compressor Efficiency ................ 26
S-105 Thermostatic Expansion Valve ................... 26
S-106 Overfeeding ................................................ 26
S-107 Underfeeding ............................................. 27
S-108 Superheat ................................................... 27
S-109 Checking Subcooling.................................. 27
S-110 Checking expansion valve operation ......... 28
S-111 Fixed Orifice Restrictor Devices ................. 28
S-112 Checking Restricted Liquid Line ................. 28
S-113 Overcharge Of Refrigerant ....................... 29
S-114 Non-Condensables ..................................... 29
S-115 Compressor Burnout ................................. 29
S-200 Checking External Static Pressure ............ 30
S-201 Checking Temperature Rise ........................ 30
S-300 Testing Primary Limit Control .................. 31
S-301 Testing Auxiliary Limit .............................. 31
S-302 Checking Flame Rollout Switch ................. 32
S-303 Testing Inducer Motor .............................. 33
S-304 Testing Gas Valve ........................................ 33
S-306 Checking Orifices........................................ 33
S-307 Checking Gas Pressure ............................... 33
Checking Pressure Transducer ........................... 34
Checking For Delayed Ignition ............................ 34
Field Test Mode .................................................... 34
Checking Integrated Igntion Control Board ..... 34
S-308 Checking For Delayed Ignition ................... 35
S-309 Checking For Flashback ............................. 35
S-310 Checking Pressure Control ....................... 35
S-314 Checking Flame Sensor .............................. 36