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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
3
Download from Www.Somanuals.com. All Manuals Search And Download.
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 .
4
Unitary Products Group
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 5 : CONSTANT VOLUME UNIT WITHOUT A ECONOMIZER WIRING DIAGRAM
6
Unitary Products Group
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 6 : CONSTANT VOLUME UNIT W/O ECONOMIZER WIRING DIAGRAM
Unitary Products Group
7
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 7 : COOLING UNIT WITH ELECTRIC HEAT DIAGRAM AND WITHOUT ECONOMIZER
8
Unitary Products Group
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 8 : CV UNIT WITH GAS HEAT AND WITHOUT ECONOMIZER WIRING DIAGRAM
Unitary Products Group
9
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 9 : CONSTANT VOLUME UNIT WITH ECONOMIZER WIRING DIAGRAM
12
Unitary Products Group
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 10 : CONSTANT VOLUME UNIT WITH ECONOMIZER CONNECTION DIAGRAM
Unitary Products Group
13
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 11 : CV UNIT WITH GAS HEAT AND ECONOMIZER WIRING DIAGRAM
14
Unitary Products Group
Download from Www.Somanuals.com. All Manuals Search And Download.
530.70-N1.11Y
FIGURE 12 : UNIT WITH ECONOMIZER AND ELECTRIC HEAT WIRING DIAGRAM
Unitary Products Group
15
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
|