Millennium Enterprises Millennium Y14 User Manual

MILLENNIUM™ ROOFTOP  
INSTALLATION  
INSTRUCTION  
CONTROLS UPGRADE FROM STYLE A TO  
STYLE C  
CONTENTS  
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
CV UNITS W/O ECONOMIZER . . . . . . . . . . . . . . . . 3  
UNITS W/O ECONO & OPT GAS OR ELEC HEAT . . . . 5  
CV UNITS WITH ECONOMIZER . . . . . . . . . . . . . . 10  
CV UNITS W/ ECONOMIZER & OPTIONAL HEAT . . . 11  
LIST OF FIGURES  
1 POWER & CONTROL WIRING LOCATION . . . . . . . . . 3  
2 EXISTING CTRL PANEL COMPONET LOC . . . . . . . . . 3  
3 TYPICAL THERMOSTAT WIRING . . . . . . . . . . . . . . . . 3  
4 NEW LOW VOLTAGE CONTROL COMPONETS . . . . . 4  
5 CV UNIT W/O A ECONO WIRING DIA . . . . . . . . . . . . . 6  
6 CV UNIT W/O ECONO WIRING DIA . . . . . . . . . . . . . . . 7  
7 COOLING UNIT W/ ELEC HT DIA & W/O ECONO . . . . 8  
8 CV UNIT W/ GAS HT & W/O ECONO WIRING DIA . . . 9  
9 CV UNIT W/ ECONO WIRING DIA . . . . . . . . . . . . . . . 12  
10CV UNIT W/ ECONO CONNECTION DIA . . . . . . . . . . 13  
11CV UNIT W/ GAS HT & ECONO WIRING DIA . . . . . . 14  
12UNIT W/ ECONO & ELEC HT WIRING DIA . . . . . . . . . 15  
MODELS:  
Y13  
Y14  
STYLE A TO STYLE C  
LIST OF TABLES  
1 PARTS SUPPLIED FOR CONTROL CHANGE . . . . . . . 2  
2 PARTS SUPPLIED FOR CV UNITS W/O ECONO . . . . 2  
3 PARTS SUPPLIED FOR CV UNITS W/ OPT HEAT . . . 3  
4 PARTS SUPPLIED FOR CV UNITS W/ ECONO . . . . . 10  
5 PARTS SUPPLIED FOR CV UNITS W/ OPT HEAT . . 10  
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU  
BEGIN TO INSTALL YOUR UNIT.  
SAVE THIS MANUAL  
035-16728-000 REV A (799)Form 530.70-N1.11Y  
530.70-N1.11Y  
TABLE 3: PARTS SUPPLIED FOR CV UNITS WITH  
OPTIONAL HEAT  
QTY  
PART NO.  
DESCRIPTION  
820/Y  
823/Y  
1
373-18689-610  
822/BR  
1
373-18689-611  
826/BR  
1
1
2
AB144GRA7171844  
AB144WHT7171845  
024-24116-000  
844/GY  
845/W  
Isolation Relay  
FIGURE 3 : TYPICAL THERMOSTAT WIRING  
OPEN ALL DISCONNECTS BEFORE SERVIC-  
ING THIS UNIT.  
The new thermostat requires a thermostat cable with a mini-  
mum of 10 conductors that run from the sub-base to the con-  
trol box. The new wire will be connected as shown in Figure  
3.  
FIGURE 1: POWER & CONTROL WIRING  
LOCATION  
1. Locate the W7400 control module in the box-electric  
(Figures 1 and 2).  
2. Remove the following wires form the W7400 control  
module and from the unit.  
201/R  
208/BR  
254/GY  
252/Y  
257/Y  
248/GY  
240/Y  
244/0  
246/PR  
NOTE: Wire ties will need to be removed to remove above  
wires.  
3. Disconnect wire 204/BR from the TR terminals on the  
w7400 control module.  
NOTE: These wires will be used with the new controls.  
4. Disconnect thermostat wire from terminals 1-4 on the  
W7400 control module.  
FIGURE 2 : EXISTING CONTROL PANEL COMPO-  
NET LOCATION  
NOTE: This wire will be used with the new controls.  
NOTE: STEPS 5 THROUGH 7 ARE FOR OPTIONAL HEAT  
ONLY.  
Unitary Products Group  
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530.70-N1.11Y  
FIGURE 4 : NEW LOW VOLTAGE CONTROL COMPONETS  
5. Disconnect wire 526/R from the 30FU location.  
14. Attach wire 836/BR from TB2 to 8T-6.  
NOTE: This wire will be used with the new controls.  
15. Attach wire 842/BR from 8T-6 to MR-B.  
16. Attach wire 814/BR from MR-B to CR1-B.  
6. Disconnect wire 533/GY from the W7400 control module  
G terminal.  
17. Attach wire 813/BR from CR1-B to CR2-B.  
18. Attach wire 812/BR from CR2-B to CR3-B.  
19. Attach wire 834/BR from CR3-B to CR4-B.  
20. Attach wire 835/BR from CR4-B to TB12-C.  
21. Attach wire 800/GY from MR-A to TB12-G.  
22. Attach wire 801/Y from CR1-A to TB12-Y1.  
23. Attach wire 802/O from CR2-A to TB12-Y2.  
24. Attach wire 803/PR from CR3-A to TB12-Y3.  
25. Attach wire 821/GY from CR4-A to TB12-Y4.  
26. Attach wire 240/Y from CR1-5 to LOR1-1-7.  
27. Attach wire 244/O from CR2-5 to LOR1-2-9.  
28. Attach wire 839/PR from CR3-5 to LOR2-1-7.  
29. Attach wire 248/GY from CR4-5 to LOR2-2-9.  
30. Attach wire 252/R from CL01 to MR-7.  
7. Disconnect wires 510/GY and 512/w from W1 & W2.  
NOTE: These wires will be used with the new controls.  
8. Remove the W7400 control module from the control box.  
9. Locate the new control plate in box-electric in the loca-  
tion shown in Figure 4.  
10. Using the four drill screws secure the back plate to the  
box-electric.  
11. Locate the packet of wires marked with “No Econo-  
mizer”.  
12. Attach thermostat wires to new location TB12  
(See Figure 3).  
NOTE: For the following steps (13-34) see Figures 5, and 6  
respectively.  
13. Attach wire 230/R from 8T-7 to TB12-R .  
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530.70-N1.11Y  
31. Attach wire 816/R from MR-7 to 8T-2.  
32. Attach wire 201/R from 8T-1 to 30FU.  
33. Attach wire 204/BR to the new location on 8T-2.  
34. Attach wire 257/Y from APS-N0 to CR1-7.  
35. Attach wire 817/Y from CR1-7 to CR2-7.  
36. Attach wire 818/Y from CR2-7 to CR3-7.  
37. Attach wire 819/Y from CR3-7 to CR4-7.  
NOTE: IF UNIT HAS OPTIONAL HEAT PLEASE CONTINUE  
WITH STEP 38.  
UNITS W/O ECONOMIZER AND OPTIONAL GAS OR  
ELECTRIC HEAT  
Units with optional Gas or Electric heat should follow the  
steps below. See Figure 7 for Gas Heat and Figure 8 for  
Electric Heat.  
NOTE: This wire will be used with the new controls.  
38. Mount WR1 & WR2 relays in the heat section.  
39. Attach wire 526/R to the new location on 8T-7.  
40. Attach wire 845/W from TB12-W1 to WR1-A.  
1
41. Attach wire 844/GY from TB12-W2 to WR2-A .  
42. Attach wire 820/Y from CR4-7 to WR1-7.  
43. Attach wire 823/Y from WR1-7 to WR2-71.  
44. Attach wire 826/BR from WR1-B to WR2-B1.  
45. Attach wire 822/BR from WR1-B to TB2.  
46. Attach wire 512/W to the new location at WR1-5.  
47. Attach wire 510/GY to the new location at WR2-51.  
48. Attach wire 533/GY to the new location on TB12-G.  
END OF INSTALLATION FOR CV UNIT WITHOUT ECONO-  
MIZER.  
1. Only on units with 480 and 780 MBH gas unit or with  
80kW and 180kW electric heat.  
Unitary Products Group  
5
530.70-N1.11Y  
FIGURE 5 : CONSTANT VOLUME UNIT WITHOUT A ECONOMIZER WIRING DIAGRAM  
6
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530.70-N1.11Y  
FIGURE 6 : CONSTANT VOLUME UNIT W/O ECONOMIZER WIRING DIAGRAM  
Unitary Products Group  
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FIGURE 7 : COOLING UNIT WITH ELECTRIC HEAT DIAGRAM AND WITHOUT ECONOMIZER  
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530.70-N1.11Y  
FIGURE 8 : CV UNIT WITH GAS HEAT AND WITHOUT ECONOMIZER WIRING DIAGRAM  
Unitary Products Group  
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TABLE 5: PARTS SUPPLIED FOR CV UNITS W/  
CV UNITS WITH ECONOMIZER  
OPTIONAL HEAT  
TABLE 4: PARTS SUPPLIED FOR CV UNITS W/  
ECONOMIZER  
QTY  
PART NO.  
DESCRIPTION  
820/Y  
823/Y  
QTY  
PART NO.  
DESCRIPTION  
1
373-18689-610  
373-18689-611  
201/R  
816/R  
1
373-18641-653  
822/BR  
1
252/R  
826/BR  
257/Y  
1
1
2
AB144GRA7171844  
AB144WHT7171845  
024-24116-000  
844/GY  
817/Y  
845/W  
1
1
373-18641-654  
373-18641-655  
818/Y  
Isolation Relay  
819/Y  
307/O  
318/O  
828/O  
842/BR  
814/BR  
813/BR  
812/BR  
811/BR  
843/BR  
841/BR  
230/R  
OPEN ALL DISCONNECTS BEFORE SERCIV-  
ING THIS UNIT.  
1
373-18641-658  
The new thermostat requires a thermostat cable with a mini-  
mum of 10 conductors that run from the sub-base to the con-  
trol box. The new wire will be connected as shown in Figure  
3.  
1
1
1
1
1
1
1
1
1
1
1
1
1
AB008RED7171230  
AB024ORN7171244  
AB027GRA7171248  
AB020RED5471250  
AB022GRA7171800  
AB007YEL7171801  
AB007ORN7171802  
AB009PRP7171803  
AB016PRP7171809  
AB012GRA7171821  
AB018BRN7171836  
AB126RED711L837  
AB027PRP7171839  
1. Locate the W7400 control module in the electric/control  
panel (See Figure 1).  
244/O  
248/GY  
250/R  
2. Remove the following wires from the W7400 control  
module:  
254/GY  
250/PR  
202/R  
294/R  
230/R  
240/Y  
244/O  
246/PR  
248/GY  
201/R  
252/Y  
800/GY  
801/Y  
802/O  
803/PR  
809/PR  
821/GY  
836/BR  
837/R  
257/Y  
839/PR  
208/BR  
307/O  
318/O  
3. Disconnect wire 204/BR from the TR terminals on the  
W7400 control module.  
NOTE: This wire will be used with the new control.  
4. Disconnect thermostat wire from terminals 1-4 on the  
W7400 control module.  
10  
Unitary Products Group  
530.70-N1.11Y  
NOTE: Steps 6 through 8 are for optional heat only.  
36. Attach wire 817/Y from CR1-7 to CR2-7.  
37. Attach wire 818/Y from CR2-7 to CR3-7.  
38. Attach wire 819/Y from CR3-7 to CR4-7.  
39. Attach wire 204/BR to the new location on 8T-2.  
40. Attach wire 828/O from RY2-A to OR-2-2.  
41. Attach 318.O from RY2-A to RY1-A.  
5. Disconnect wire 526/R from the 30FU location.  
6. Disconnect wire 512/W and 510/GY from the W7400  
control module W1 and W2 terminals.  
NOTE: This wire will be used with the new controls.  
7. Disconnect wire 533/GY from the W7400 G terminal.  
8. Remove the W7400 control module from the control box.  
42. Attach 307/0 from R1Y-A to ELM-5.  
43. Disconnect wire 239/R from ACT1-24V.  
NOTE: This wire will be used with the new controls.  
9. Locate the new control plate in box-electric in the loca-  
tion shown in Figures 2 and 4.  
10. Using the four drill screws secure the back plate to the  
box-electric.  
44. Attach wire 239/R to the new location on OR-1-5.  
45. Attach wire 837/R from OR-1-7 to ACT1-24V.  
46. Attach wire 250/R from ELM-TR to MR-5.  
11. Locate the packet of wires marked with “Economizer”.  
12. Attach thermostat wires to new location TB12  
(See Figure 3).  
NOTE: IF UNIT HAS OPTIONAL HEAT CONTINUE WITH  
STEP 45.  
For steps 13-43 see Figures 9 and 10.  
CV UNITS WITH ECONOMIZER AND OPTIONAL  
HEAT  
13. Attach wire 230/R from 8T-7 to TB12-R.  
14. Attach wire 836/BR from TB2 to 8T-6.  
See Figure 11 for Gas Heat and Figure12 for Electric Heat.  
15. Attach wire 842/BR from 8T-6 to MR-B.  
16. Attach wire 814/BR from MR-B to CR1-B.  
17. Attach wire 813/BR from CR1-B to CR2-B.  
18. Attach wire 812/BR from CR2-B to CR3-B.  
19. Attach wire 811/BR from CR3-B to CR4-B.  
20. Attach wire 843/BR from CR4-B to OR-B.  
21. Attach wire 841/BR from OR-B to TB12-C.  
22. Attach wire 800/GY from MR-A to TB12-G.  
23. Attach wire 801/Y from CR1-A to TB12-Y1.  
24. Attach wire 802/O from CR2-A to TB12-Y2.  
25. Attach wire 803/PR from CR3-A to TB12-Y3.  
26. Attach wire 821/GY from CR4-A to TB12-Y4.  
27. Attach wire 809/PR from TB12-A1 to OR-A.  
28. Attach wire 240/Y from CR1-5 to LOR1-1-7 .  
29. Attach wire 244/O from CR2-5 to LOR1-2-9.  
30. Attach wire 839/PR from CR3-5 to LOR2-1-7.  
31. Attach wire 248/GY from CR4-5 to LOR2-2-9.  
32. Attach wire 252/R from CLO1 to MR-7.  
33. Attach wire 816/R from MR-7 to 8T-1.  
47. Mount the WR1 and WR2 relays in the heat section.  
48. Attach wire 526/R to the new location on 8T-7.  
49. Attach wire 845/W from TB12-W1 to WR1-A.  
1
50. Attach wire 844/GY from TB12-W2 to WR2-A .  
51. Attach wire 510/GY to the new location at WR2-51.  
52. Attach wire 823/Y from WR1-7 to WR2-71 .  
53. Attach wire 826/BR from WR1-B to WR2-B1 .  
54. Attach wire 822/BR from WR1-B to TB2.  
55. Attach wire 512/W to the new location at WR1-5.  
56. Attach wire 533/GY to the new location on TB12-G.  
57. Attach wire 820/Y from CR4-7 to WR1-7.  
34. Attach wire 257/Y from APS-NO to BRI-7.  
35. Attach wire 201/R from 8T-1 to 30FU.  
1. Only on units with 480 and 700 MBH gas heat or units  
with 80kW and 180kW electric heat.  
Unitary Products Group  
11  
530.70-N1.11Y  
FIGURE 9 : CONSTANT VOLUME UNIT WITH ECONOMIZER WIRING DIAGRAM  
12  
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FIGURE 10 : CONSTANT VOLUME UNIT WITH ECONOMIZER CONNECTION DIAGRAM  
Unitary Products Group  
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FIGURE 11 : CV UNIT WITH GAS HEAT AND ECONOMIZER WIRING DIAGRAM  
14  
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FIGURE 12 : UNIT WITH ECONOMIZER AND ELECTRIC HEAT WIRING DIAGRAM  
Unitary Products Group  
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Subject to change without notice. Printed in U.S.A.  
Copyright © by YORK Unitary Products 1999. All rights reserved.  
Supersedes: Nothing  
530.70-N1.11Y (799)  
YORK  
Unitary  
Products  
5005  
YORK  
Drive  
Norman  
OK  
73069  

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