Table of Contents
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Form 201.28-NM1.1
Issue date: 08/06/2021
List of tables
Table 1 - Unit rigging ...............................................................................................................................................26
Table 2 - Minimum evaporator tube removal clearance ..........................................................................................36
Table 3 - Evaporator connections dimensions ........................................................................................................42
Table 4 - Electrical lug data .....................................................................................................................................52
Table 5 - Physical data - Microchannel coil .............................................................................................................64
Table 6 - Physical data - Round tube coil ...............................................................................................................68
Table 7 - Optional one-pass evaporator ..................................................................................................................70
Table 8 - Standard two-pass, rear inlet/outlet evaporator .......................................................................................74
Table 9 - Optional three-pass rear inlet/front outlet evaporator ..............................................................................78
Table 10 - Isolator selection and mounting locations ..............................................................................................84
Table 11 - Freeze damage protection requirements...............................................................................................101
Table 12 - Values required for BAS communication.............................................................................................. 111
Table 13 - Real time error numbers for BAS, SC-EQ or E-Link communications card ......................................... 112
Table 14 - YVAA native communications data map .............................................................................................. 114
Table 15 - YVAA operational and fault/inhibit codes ............................................................................................. 117
Table 16 - YVAA E-Link communications data map .............................................................................................. 118
Table 17 - Flash card update error XXXXX ...........................................................................................................123
Table 18 - Low differential oil pressure cutout.......................................................................................................128
Table 19 - Discharge pressure load limiting/unloading .........................................................................................129
Table 20 - Suction pressure load limiting/unloading .............................................................................................129
Table 21 - Start inhibit sensor thresholds ..............................................................................................................130
Table 22 - Sensor min/max outputs ......................................................................................................................138
Table 23 - Compressor motor overload settings ...................................................................................................140
Table 24 - Setpoint limits .......................................................................................................................................150
Table 25 - Programmable operating parameters ..................................................................................................153
Table 26 - Printout types .......................................................................................................................................161
Table 27 - Troubleshooting guide ..........................................................................................................................169
Table 28 - R-134a pressure to saturated temperature conversion.........................................................................172
Table 29 - R-513A refrigerant pressure to saturated temperature ........................................................................173
Table 30 - R-513A refrigerant temperature to pressure ........................................................................................174
Table 31 - Temperature input voltage sensor (measured signal to shield at the sensor) ...................................... 175
Table 32 - Outside air temperature sensor input voltage (measured signal to shield at the sensor) .................... 176
Table 33 - Pressure transducer output voltage (measured signal to return at the transducer) ............................. 177
Table 34 - Motor temperature sensor resistance (check at the motor) .................................................................178
Table 35 - SI metric conversion ............................................................................................................................181
9
JOHNSON CONTROLS
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