154 YORK INTERNATIONAL
FORM 201.18-NM1 (102)
EPROM Version C.ACS.09.04 (7EDE),
C.ACS.09.05 (DF08), NOTE: C.ACS.1903 (B8ED)
Operates identical to the EPROMs noted above.
Fan operation on these versions is outlined in Tables 11
and 12. 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 pres-
sure 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 high-
est fan stage reached if both the DP and OAT require-
ments are met. For example, if a system is at fan stage 4,
and the DP falls below 180 PSIG and the OAT drops be-
low 75°+ F, the fan stage will be reduced to stage 3.
TABLE 11 – CONDENSER FAN CONTROL AND FAN CONTACTOR DATA FOR DXST UNITS
WITH 4 FANS/SYSTEM (EPROM VERSIONS C.ACS.09.04 (7EDE), C.ACS.09.05 (DF08), AND
C.ACS.1903 (B8ED))
* 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 >230 PSIG <160 PSIG & <65°F 10M 131 14
Y
3 5, 7 >250 PSIG <180 PSIG & <70°F 11M, 12M 132 10
S
4 1, 5, 7 >265 PSIG <195 PSIG & <75°F 9M, 11M, 12M 130, 132 10, 15
5 3, 5, 7 >275 PSIG <200 PSIG & <80°F 10M, 11M, 12M 131, 132 10, 14
1
6 1, 3, 5, 7 >285 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 >230 PSIG <160 PSIG & <65°F 16M 231 14
Y
3 6, 8 >250 PSIG <180 PSIG & <70°F 17M, 18M 232 10
S
4 2, 6, 8 >265 PSIG <195 PSIG & <75°F 15M, 17M, 18M 230, 232 10, 15
5 4, 6, 8 >275 PSIG <200 PSIG & <80°F 16M, 17M, 18M 231, 232 10, 14
2
6 2, 4, 6, 8 >285 PSIG <205 PSIG & <85°F 15M, 16M, 17M, 18M 230, 231, 232 10, 14, 15
TABLE 12 – CONDENSER FAN CONTROL AND FAN CONTACTOR DATA FOR DXST UNITS
WITH 5 FANS/SYSTEM (EPROM VERSIONS C.ACS.09.04 (7EDE), C.ACS.09.05 (DF08), AND
C.ACS.1903 (B8ED))
* 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 >230 PSIG <160 PSIG & <65°F 10M, 11M 131 14
Y
3 7, 9 >250 PSIG <180 PSIG & <70°F 12M, 13M 132 10
S
4 1, 7, 9 >265 PSIG <195 PSIG & <75°F 9M, 12M, 13M 130, 132 10, 15
5 3, 5, 7, 9 >275 PSIG <200 PSIG & <80°F 10M, 11M, 12M, 13M 131, 132 10, 14
1
6 1, 3, 5, 7, 9 >285 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 >230 PSIG <160 PSIG & <65°F 16M, 17M 231 14
Y
3 8, 10 >250 PSIG <180 PSIG & <70°F 18M, 19M 232 10
S
4 2, 8, 10 >265 PSIG <195 PSIG & <75°F 15M, 18M, 19M 230, 232 10, 15
5 4, 6, 8, 10 >275 PSIG <200 PSIG & <80°F 16M, 17M, 18M, 19M 231, 232 10, 14
2
6 2, 4, 6, 8, 10 >285 PSIG <205 PSIG & <85°F 15M, 16M, 17M, 18M, 19M 230, 231, 232 10, 14, 15
Micro Panel Contents
To Next Page
Loading...
