Servicing - Daikin DX17VSS B Series Service Instructions Manual

SERVICING

S-1 CHECkinG voLtAGE .................................... 16
S-2 CHECkinG WiRinG ....................................... 16
S-3A tHERMoStAt And WiRinG ......................... 16
S-3E dAikin CoMMUniCAtinG tHERMoStAt ... 16
S-4 CHECkinG tRAnSfoRMER And ContRoL
CiRCUit ........................................................... 17
S-12 CHECkinG HiGH PRESSURE SWitCH ...... 17
S-13 CHECkinG indooR Unit / oUtdooR Unit
PRESSURE SEnSoR ..................................... 18
1.0 AiRfLoW ConSidERAtion ......................... 18
2.0 AiRfLoW RAtE LiMitAtion ........................ 18
3.0 AiRfLoW tRiM SEttinG LiMitAtion .......... 19
S-52 CHECkinG HEAtER ELEMEntS ................. 19
S-60 ELECtRiC HEAtER (oPtionAL itEM) ....... 19
S-61A CHECkinG HEAtER LiMit ContRoL(S) ... 20
S-61B CHECkinG HEAtER fUSE Link
(oPtionAL ELECtRiC HEAtERS) .............. 21
S-16G CHECkinG EMERSon ULtRAtECH™
ECM MotoRS ................................................ 21
NOTE: Please refer to the Service Manual of each unit about the Gas furnaces and Modular Blower.
HIGH VOLTAGE!
Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to
do so may cause property damage, personal injury or death.
TABLE OF CONTENTS
S-17 CHECkinG CoMPRESSoR .......................... 23
S-17A RESiStAnCE tESt ........................................ 24
S-17B GRoUnd tESt ............................................... 24
S-26 tEStinG tHERMiStoR, EEv CoiL And
SoLEnoid vALvE CoiL RESiStAnCE ....... 24
S-100 REfRiGERAtion REPAiR PRACtiCE ........ 25
S-101 LEAk tEStinG (nitRoGEn oR
nitRoGEn-tRACEd) .................................... 26
S-102 EvACUAtion .................................................. 26
S-103 CHARGinG ...................................................... 28
S-104 CHECkinG CoMPRESSoR EffiCiEnCy... 29
S-114 non-CondEnSABLE .................................... 29
S-115 CoMPRESSoR BURnoUt ........................... 29
S-202 dUCt StAtiC PRESSURES And/oR StAtiC
PRESSURE dRoP ACRoSS CoiLS ............ 30
S-203 AiR HAndLER EXtERnAL StAtiC .............. 30
S-203A tWo PiECE indooR Unit EXtERnAL
StAtiC ........................................................... 31
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