
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
Summary of Contents for MILLENNIUM YCAS0230
Page 45: ...45 YORK INTERNATIONAL FORM 201 18 NM1 102 This page intentionally left blank 7 ...
Page 70: ...70 YORK INTERNATIONAL FORM 201 18 NM1 102 Technical Data FIG 30 DETAIL B LD03285 ...
Page 166: ...166 YORK INTERNATIONAL FORM 201 18 NM1 102 ...