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APPENDIX C — UNIT STAGING TABLES
Table Y — VAV AND ADAPTIVE CV STAGING SEQUENCE (Sizes 090-100)
*Minimum load valve.
Table Z — VAV (WITH DIGITAL COMPRESSOR) STAGING SEQUENCE (Sizes 090-100)
*On units with optional digital scroll compressor, compressor A1 modulates from minimum to maximum capacity to provide increased stages.
STAGE
SEQUENCE
01* 1 2 3 4 5 6
COMP Compressor Status
A1 OFFONONONONONONON
A2 OFF OFF OFF OFF ON ON ON ON
A3 OFF OFF OFF OFF OFF OFF ON ON
B1 OFF OFF OFF ON ON ON ON ON
B2 OFF OFF OFF OFF OFF ON ON ON
B3 OFF OFF OFF OFF OFF OFF OFF ON
UNIT Capacity 48/50P
090 0% 12% 17% 33% 50% 67% 83% 100%
100 0% 11% 15% 33% 49% 67% 82% 100%
STAGE
SEQUENCE
0123456
COMP Compressor Status
A1* OFFONONONONONON
A2 OFFOFFOFFONONONON
A3 OFF OFF OFF OFF OFF ON ON
B1 OFF OFF ON ON ON ON ON
B2 OFF OFF OFF OFF ON ON ON
B3 OFF OFF OFF OFF OFF OFF ON
UNIT Capacity 48/50P
090 0% 8% to 17% 25% to 33% 42% to 50% 58% to 67% 75% to 83% 92% to 100%
100 0% 8% to 15% 26% to 33% 41% to 49% 59% to 67% 74% to 82% 92% to 100%
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