RT-SVX34R-EN
65
Table 39.
Condenser fan/compressor sequence - high efficiency
27.5-35 Ton High Efficiency
Compressor Stage 1
Compressor Stage 2
Fan #1
Fan #2
Fan #3
Ambient
Range (F)
# Cond
Fans On
Fan #1
Fan #2
Fan #3
Ambient
Range (F)
# Cond
Fans On
ON
OFF
OFF
0-70
1
ON
OFF
OFF
0-58
1
OFF
OFF
70-75
1 or 2
OFF
OFF
58-63
1 OR 2
ON
OFF
75-80
2
ON
OFF
63-70
2
ON
OFF
80-85
2 or 3
ON
OFF
70-75
2 OR 3
ON
ON
85-115
3
ON
ON
75-115
3
27.5-35 Ton High Efficiency
Compressor Stages 3 or 4
Compressor Stage 5
Fan #1
Fan #2
Fan #3
Ambient
Range (F)
# Cond
Fans On
Fan #1
Fan #2
Fan #3
Ambient
Range (F)
# Cond
Fans On
ON
OFF
OFF
0-60
1
ON
OFF
OFF
0-50
1
OFF
OFF
60-65
1 OR 2
OFF
OFF
50-55
1 OR 2
ON
OFF
65-70
2
ON
OFF
55-60
2
ON
OFF
70-75
2 OR 3
ON
OFF
60-65
2 OR 3
ON
ON
75-115
3
ON
ON
65-115
3
40 Ton High Eff. and Std Eff. CV
Compressor Stages 1 & 2
Compressor Stages 3 & 4
Fan #1
Fan #2
Fan #3 & 4
Ambient
Range (F)
# Cond
Fans On
Fan #1
Fan #2
Fan #3 & 4
Ambient
Range (F)
# Cond
Fans On
ON
OFF
OFF
0-60
1
ON
OFF
OFF
0-40
1
OFF
OFF
60-70
1 or 2
OFF
OFF
40-45
1 OR 2
ON
OFF
70-80
2
ON
OFF
45-75
2
ON
OFF
80-85
2 or 4
ON
OFF
75-80
2 OR 4
ON
ON
85-115
4
ON
ON
80-115
4
40 Ton High Eff. and Std Eff. CV
50 Ton High Eff. and Std Eff. CV
Compressor Stage 5
Compressor Stages 1 & 2
Fan #1
Fan #2
Fan #3 & 4
Ambient
Range (F)
# Cond
Fans On
Fan #1
Fan #2
Fan #3 & 4
Ambient
Range (F)
# Cond
Fans On
ON
OFF
OFF
0-40
1
ON
OFF
OFF
0-60
1
OFF
OFF
40-45
1 OR 2
OFF
OFF
60-65
1 or 2
ON
OFF
45-65
2
ON
OFF
65-75
2
ON
OFF
65-70
2 OR 4
ON
OFF
75-80
2 or 4
ON
ON
70-115
4
ON
ON
80-115
4
50 Ton High Eff. and Std Eff. CV
Compressor Stages 3 & 4
Compressor Stage 5
Fan #1
Fan #2
Fan #3 & 4
Ambient
Range (F)
# Cond
Fans On
Fan #1
Fan #2
Fan #3 & 4
Ambient
Range (F)
# Cond
Fans On
ON
OFF
OFF
0-35
1
ON
OFF
OFF
0-35
1
OFF
OFF
35-40
1 OR 2
OFF
OFF
35-40
1 OR 2
ON
OFF
40-70
2
ON
OFF
40-60
2
ON
OFF
70-75
2 OR 4
ON
OFF
60-65
2 OR 4
ON
ON
75-115
4
ON
ON
65-115
4
Notes:
1
.
Condenser fan will de-energize at 5ºF below the energizing temperature
2
.
Compressor Stage 1 = CPR1
3
.
Compressor Stage 2 = CPR2 or CPR3 depending on staging sequence
4
.
Compressor Stage 3 = CPR1 & CPR2 or CPR2 & CPR3 depending on staging sequence
5
.
Compressor Stage 4 = CPR2 & CPR3
6
.
Compressor Stage 5 = CPR1 & CPR2 & CPR3
7
.
Conventional three stage thermostat sequence: Y1=CPR1 (Stage 1), Y2=CPR1&2 (Stage 3), Y1 + Y2 = CPR1,2,3 (Stage 5)
8
.
During active hot gas reheat all compressors will be staged “On”. For units equipped with four condenser fans (40 and 50 Ton), the
condenser fan output states will be controlled based on the O/A temperature. If O/A is above 85°F, all condenser fan outputs will be
energized. If O/A falls below 80°F, Output B will de-energize and will not re-energize again until the O/A rises above 85°F. For units
configured with three condenser fans (27.5 to 35 Ton), a maximum of two condenser fans will energize. Output A will energize above 85°
F and de-energize when the O/A falls below 80°F; Output B will remain de-energized during active hot gas reheat. If O/A falls below 80°F,
Output A will de-energize and will not re-energize again until O/A rises above 85°F.
Summary of Contents for Voyager Commercial
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