York YCAS0180 - Page 153

153YORK INTERNATIONAL
FORM 201.18-NM1 (102)
EPROM Versions C.A14.09.03 (A85F) and
C.ACS.09.03 (D7C9)
Fan operation is outlined in Tables 9 and 10. Condenser
fan ON conditions are governed solely by the Discharge
Pressure (DP). When the DP rises above 205 PSIG, fan
stage 1 is activated. From here, subsequent fan stages are
activated as the discharge pressure rises. The system will
remain at the highest fan stage reached unless the OFF
conditions outlined in the next paragraph are satisfied.
Condenser fan OFF conditions are governed by both the
DP and OAT. Fan staging will be decreased from the highest
fan stage reached if both the DP and OAT requirements
are met. For example, if a system is at fan stage 4, and the
DP falls below 180 PSIG and the OAT drops below 75° F,
the fan stage will be reduced to stage 3.
TABLE 9 – CONDENSER FAN CONTROL AND FAN CONTACTOR DATA FOR DXST UNITS
WITH 4 FANS/SYSTEM (EPROM VERSIONS C.A14.09.03 (A85F) AND C.ACS.09.03 (D7C9))
* Sys 1 Outputs are on Relay Output Board #1
Sys 2 Outputs are on Relay Output Board #2
Fan
ON * OFF *
Fan Wire
Relay
Stage
Fans Conditions Conditions
Contactor Number
Board
DP DP & OAT
Output*
1 1 >205 PSIG <135 PSIG & <60°F 9M 130 15
S
2 3 >220 PSIG <150 PSIG & <65°F 10M 131 14
Y
3 5, 7 >235 PSIG <165 PSIG & <70°F 11M, 12M 132 10
S
4 1, 5, 7 >250 PSIG <180 PSIG & <75°F 9M, 11M, 12M 130, 132 10, 15
5 3, 5, 7 >265 PSIG <195 PSIG & <80°F 10M, 11M, 12M 131, 132 10, 14
1
6 1, 3, 5, 7 >275 PSIG <205 PSIG & <85°F 9M, 10M, 11M, 12M 130, 131, 132 10, 14, 15
1 2 >205 PSIG <135 PSIG & <60°F 15M 230 15
S
2 4 >220 PSIG <150 PSIG & <65°F 16M 231 14
Y
3 6, 8 >235 PSIG <165 PSIG & <70°F 17M, 18M 232 10
S
4 2, 6, 8 >250 PSIG <180 PSIG & <75°F 15M, 17M, 18M 230, 232 10, 15
5 4, 6, 8 >265 PSIG <190 PSIG & <80°F 16M, 17M, 18M 231, 232 10, 14
2
6 2, 4, 6, 8 >275 PSIG <205 PSIG & <85°F 15M, 16M, 17M, 18M 230, 231, 232 10, 14, 15
TABLE 10 – CONDENSER FAN CONTROL AND FAN CONTACTOR DATA FOR DXST UNITS
WITH 5 FANS/SYSTEM (EPROM VERSIONS C.A14.03 (A85F) AND C.ACS.09.03 (D7C9))
* Sys 1 Outputs are on Relay Board #1
Sys 2 Outputs are on Relay Output Board #2
Fan
ON * OFF *
Fan Wire
Relay
Stage
Fans Conditions Conditions
Contactor Number
Board
DP DP & OAT
Output*
1 1 >205 PSIG <135 PSIG & <60°F 9M 130 15
S
2 3, 5 >220 PSIG <150 PSIG & <65°F 10M, 11M 131 14
Y
3 7, 9 >235 PSIG <165 PSIG & <70°F 12M, 13M 132 10
S
4 1, 7, 9 >250 PSIG <180 PSIG & <75°F 9M, 12M, 13M 130, 132 10, 15
5 3, 5, 7, 9 >265 PSIG <195 PSIG & <80°F 10M, 11M, 12M, 13M 131, 132 10, 14
1
6 1, 3, 5, 7, 9 >275 PSIG <205 PSIG & <85°F 9M, 10M, 11M, 12M, 13M 130, 131, 132 10, 14, 15
1 2 >205 PSIG <135 PSIG & <60°F 15M 230 15
S
2 4, 6 >220 PSIG <150 PSIG & <65°F 16M, 17M 231 14
Y
3 8, 10 >235 PSIG <165 PSIG & <70°F 18M, 19M 232 10
S
4 2, 8, 10 >250 PSIG <180 PSIG & <75°F 15M, 18M, 19M 230, 232 10, 15
5 4, 6, 8, 10 >265 PSIG <190 PSIG & <80°F 16M, 17M, 18M, 19M 231, 232 10, 14
2
6 2, 4, 6, 8, 10 >275 PSIG <205 PSIG & <85°F 15M, 16M, 17M, 18M, 19M 230, 231, 232 10, 14, 15
8