York International ZM Series User manual

Installation Manual
R-410A
ZM SERIES
10-12 Ton
50 Hertz
5703827-XIM-A-0319
Table of contents
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Preceding installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rigging and handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ZM10-12 unit weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Roof curbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power and control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Blower phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Airflow performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Smart Equipment™ unit control board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Compressor operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
IntelliSpeed™ supply fan control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Economizer sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Dry bulb changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Single enthalpy changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Dual enthalpy changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Auto . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Free cooling operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Power exhaust. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Smart Equipment™ economizer board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Start-up for cooling operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Charging the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Navigation components for the Smart Equipment™ control board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Start-up sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
User’s maintenance and service information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

5703827-XIM-A-0319
2Johnson Controls Ducted Systems
List of tables
1 ZM10-12 unit limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 ZM10-12 weights and dimensions - imperial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 ZM10-12 weights and dimensions - metric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 ZM10-12 unit accessory weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 ZM10-12 unit physical dimensions - imperial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 ZM10-12 unit physical dimensions - metric. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 ZM10-12 unit clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 ZM10-12 side duct dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9 ZM10-12 left/end duct dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
10 Roof curb components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
11 Control wire sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
12 ZM10-12 standard static motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
13 ZM10 physical data - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
14 ZM10 physical data - metric units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
15 ZM12 physical data - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
16 ZM12 physical data - metric units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
17 Rated airflow - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
18 Rated airflow - metric units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
19 Altitude and temperature correction factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
20 ZM10-12 standard motor side duct application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
21 ZM10-12 standard motor bottom duct application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
22 RPM selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
23 Rad/s selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
24 Indoor blower specifications - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
25 Indoor blower specifications - metric units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
26 Motor sheave datum diameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
27 ZM10-12 additional static resistance - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
28 ZM10-12 additional static resistance - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
29 Cable for FC buses and SA buses in order of preference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
30 ZM10 charging table - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
31 ZM10 charging table - metric units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
32 ZM12 charging table - imperial units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
33 ZM12 charging table - metric units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
List of figures
1 Unit shipping bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Return air smoke detector - shipped position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Return air smoke detector - working position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 4 point and 6 point load weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Center of gravity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 ZM10-12 physical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 ZM10-12 unit bottom duct openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 ZM10-12 unit electrical entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 ZM10-12 unit side duct openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
10 ZM10-12 unit left duct opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
11 ZM10-12 roof curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
12 ZM10-12 transition roof curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
13 Side panels with hole plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
14 Return down flow plenum with panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
16 Field wiring disconnect - cooling unit with or without electric heat and all units with a VFD option . . . . . . . . . . . . . . . . . . . . . . 19
17 Field wiring disconnect - cooling unit with gas heat without a VFD option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
18 Typical Smart Equipment™ control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
19 Belt adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
20 Altitude and temperature correction factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
21 Unit control board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
22 SE-ECO1001-0 economizer controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5703827-XIM-A-0319
Johnson Controls Ducted Systems 3
General
ZM units are single package air conditioners that are designed for outdoor installation on a rooftop or slab and for non-residential
use. These units are completely assembled on rigid, permanently attached base rails. All piping, refrigerant charge, and electrical
wiring is factory installed and tested. The units require electric power and duct connections.
These HVAC appliances are classified as not accessible to the general public.
Safety considerations
This is a safety alert symbol. When you see this symbol on labels or in manuals, be alert to the potential for personal injury.
Understand and pay particular attention the signal words DANGER, WARNING or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not avoided may result in minor or moderate injury. It is also used
to alert against unsafe practices and hazards involving only property damage.
These appliances are not intended for use by people (including children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given supervision or instructions concerning use of the appliance by a
person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
These appliances can be installed to a maximum height of 10000 ft (3000 m) above sea level.
These appliances shall be installed in accordance with national wiring regulations.
WARNING
Improper installation may create a condition where the operation of the product
could cause personal injury or property damage. Improper installation, adjustment,
alteration, service or maintenance can cause injury or property damage. Refer to
this manual for assistance or for additional information, consult a qualified
contractor, installer or service agency.
CAUTION
This product must be installed in strict compliance with the installation instructions
and any applicable local, state and national codes including, but not limited to
building, electrical, and mechanical codes.
WARNING
Before performing service or maintenance operations on unit, turn off main power
switch to unit. Electrical shock could cause personal injury. Improper installation,
adjustment, alteration, service or maintenance can cause injury or property damage.
Refer to this manual. For assistance or additional information consult a qualified
installer or service agency.
CAUTION
This system uses R-410A refrigerant which operates at higher pressures than R-22.
No other refrigerant may be used in this system. Gauge sets, hoses, refrigerant
containers, and recovery systems must be designed to handle R-410A. If you are
unsure, consult the equipment manufacturer. Failure to use R-410A compatible
servicing equipment may result in property damage or injury.

5703827-XIM-A-0319
4Johnson Controls Ducted Systems
Due to system pressure, moving parts, and electrical components, installation and servicing of air conditioning equipment can be
hazardous. Only qualified, trained service personnel must install, repair, or service this equipment. Untrained personnel can perform
basic maintenance functions of cleaning coils and filters and replacing filters.
Observe all precautions in the literature, labels, and tags that accompany the equipment whenever you work on air conditioning
equipment. The installation must conform with local building codes.
Wear safety glasses and work gloves. Use a quenching cloth and have a fire extinguisher available during brazing operations.
Inspection
As soon as you receive a unit, inspect the unit for possible damage during transit. If damage is evident, note the extent of the
damage on the carrier’s freight bill. A separate request for inspection by the carrier’s agent should be made in writing.
Reference
Additional information is available in the following reference forms:
• Technical Guide - ZM10-12 5708826
Renewal parts
Contact your local Ducted Systems parts distribution center for authorized replacement parts.
Approvals
• For use as a cooling only unit.
• For outdoor installation only.
• For installation on combustible material and may be installed directly on combustible flooring or, in the U.S., on wood flooring
or Class A, Class B or Class C roof covering materials.
WARNING
Electrical shock, fire or explosion hazard
Failure to follow safety warnings exactly could result in dangerous operation, serious
injury, death or property damage.
Improper servicing could result in dangerous operation, serious injury, death or
property damage.
• Before servicing the unit, disconnect all electrical power to the unit.
• When servicing controls, label all wires prior to disconnecting. Reconnect the wires
correctly.
• Verify proper operation after servicing.
CAUTION
This product must be installed in strict compliance with the enclosed installation
instructions and any applicable local, state and national codes including, but not
limited to, building, electrical, and mechanical codes.
CAUTION
This product must be installed in strict compliance with the enclosed installation
instructions and any applicable local, state, and national codes including, but not
limited to, building, electrical, and mechanical codes.

5703827-XIM-A-0319
Johnson Controls Ducted Systems 5
WARNING
Improper installation may create a condition where the operation of the product
could cause personal injury or property damage.
CAUTION
This system uses R-410A refrigerant which operates at higher pressures than R-22.
No other refrigerant may be used in this system.

5703827-XIM-A-0319
6Johnson Controls Ducted Systems
Nomenclature
ZM 10 C00B 7 A 1 U
Product Category
ZM = Pkg AC R410A Middle East
(High Ambient and High Efficiency)
Voltage
Product Generation
1 = First Generation
Heat Type
C = Cooling only
Nominal Cooling Capacity
10 = 10 Ton / 35 kW
12 = 12.5 Ton / 43.75 kW
See catalog for ratings at 95°F, 118.4°F, and 125.6°F
Blower Options
Special Options - Country
U = Kuwait
Q = Qatar
E = Emirates, others
A = Standard cabinet
E = Stainless steel drain pan
1 = Standard throwaway filters
2 = 2 in. pleated filters (MERV 8)
3 = 4 in. pleated filters (MERV 13)
4 = Coil guard (CG) and standard filters
5 = CG and 2 in. pleated filters
6 = CG and 4 in. pleated filters
Cabinet Options
A = No economizer
Service Options
1 = No service options
B = PHM (phase monitor as standard)
C = DFS (dirty filter switch)
D = SSD (supply air smoke detector)
E = RSD (return air smoke detector)
F = PHM, DFS
G = PHM, SSD
H = PHM, RSD
J = DFS, SSD
K = DFS, RSD
L = SSD, RSD
M = PHM, DFS, SSD
N = PHM, DFS, RSD
P = PHM, SSD, RSD
Q = DFS, SSD, RSD
R = PHM, DFS, SSD, RSD
Additional Options
Outdoor Air Options
A = Standard Indoor and Outdoor Coils
B = E-Coat Condenser Outdoor Coil Only
C = E-Coat Evaporator Coil Only
F = E-Coat Condenser and Evaporator Coils
Heat Capacity
00 = Cooling only (no heat)
B = Standard static
7 = 380/415V-3-50Hz
Refrigeration
Sensor Options
Controls
1A
A = Smart Equipment™
A = None (units come standard with
factory-installed supply air, return air,
and outdoor air temperature sensors)
Nomenclature for 10 to 12.5 Ton / 35 kW to 43.75 kW Model Numbers
A
1A
A1

5703827-XIM-A-0319
Johnson Controls Ducted Systems 7
Installation
Installation safety information
Read these instructions before you install the appliance. This is an outdoor cooling unit. The installer must assure that these
instructions are made available to the consumer. Instruct the customer to retain the instructions for future reference.
• Install this unit only in a location and position as specified on page 8 of these instructions.
Preceding installation
1. Remove the two screws that hold the brackets in fork-lift slots on the side of the unit.
t
Figure 1: Unit shipping bracket
2. Turn each bracket toward the ground. The protective plywood covering drops to the ground.
3. If an optional return air smoke detector is installed, you must move the return air sensor from the factory shipped position
(upside down) to the working position (right side up). Then slide the flex tube over the stub and tighten, see Figure 3.
t
Figure 2: Return air smoke detector - shipped position
t
Figure 3: Return air smoke detector - working position
A Bracket screws
B Bracket
A Flex tube secured to the bracket for shipping C Controller
B Return air sensor in the shipped position D Wire tie
A Controller C Flex tube in the working position
B Return air sensor in the working position
AB
B
C
D
A
B
C
A

5703827-XIM-A-0319
8Johnson Controls Ducted Systems
Limitations
The units must be installed in accordance with the following standards:
In the U.S.A.:
• National Electrical Code, ANSI/NFPA No. 70 - Latest Edition
• Local building codes
In Canada:
• Canadian Electrical Code, CSA C22.1
• Installation Codes, CSA - B149.1.
• Local plumbing and waste water codes, and
• Other applicable local codes.
For export only:
• Building and installation codes enforced by the local government of the country where the unit is installed.
Location
Use the following guidelines to select a suitable location for these units:
• The unit is designed for outdoor installation only.
• Condenser coils must have an unlimited supply of air. Where a choice of location is possible, position the unit on either the
north or east side of building.
• The unit is suitable for mounting on roof curb.
• For ground level installation, use a level concrete slab with a minimum thickness of 4 in. (102 mm). The length and width
should be at least 6 in. (152 mm) greater than the unit base rails. Do not tie slab to the building foundation.
• Roof structures must be able to support the weight of the unit and its options and accessories. The unit must be installed on a
solid, level roof curb or appropriate angle iron frame.
• Maintain level tolerance to 1/2 in. (13 mm) across the entire width and length of unit.
Rigging and handling
Exercise care when you move the unit. Do not remove any packaging until the unit is near the place of installation. To rig the unit,
attach chain or cable slings to the lifting holes provided in the base rails. Spreader bars, whose length exceeds the largest dimension
across the unit, MUST be used across the top of the unit.
Table 1: ZM10-12 unit limitations
Size (tons/KW) Unit voltage
Unit limitations
Applied voltage Outdoor DB temp Outdoor DB temp
Minimum Maximum Maximum (°F) Maximum (°C)
ZM10
(10/35) 380/415-3-50 342 457 125 52
ZM12
(12.5/43.75) 380/415-3-50 342 457 125 52
WARNING
Do not permit overhanging structures or shrubs to obstruct condenser air discharge
outlet, combustion air inlet, or vent outlets.
CAUTION
If a unit is to be installed on a roof curb other than a Ducted Systems roof curb, you
must apply gasketing to all surfaces that come in contact with the underside of the
unit.

5703827-XIM-A-0319
Johnson Controls Ducted Systems 9
Units may be moved or lifted with a forklift. Slotted openings in the base rails are provided for this purpose.
The length of the forks must be a minimum of 60 in. (1524 mm).
CAUTION
Before lifting, make sure the unit weight is distributed equally on the rigging cables
so it will lift evenly.
CAUTION
All panels must be secured in place when the unit is lifted.
The condenser coils should be protected from rigging cable damage with plywood or
other suitable material.

5703827-XIM-A-0319
10 Johnson Controls Ducted Systems
ZM10-12 unit weights
Figure 4: 4 point and 6 point load weight
Figure 5: Center of gravity
Table 2:ZM10-12 weights and dimensions - imperial
Size
(tons)
Weight (lbs.) Center of gravity (in.) 4 point load location (lbs.) 6 point load location (lbs.)
ShippingOperating X Y ABCDABCDEF
ZM10
(10) 1345 1340 51 24 226 307 464 342 144 174 216 326 263 217
ZM12
(12.5) 1435 1430 51 25 256 338 475 361 163 195 236 332 274 230
Table 3:ZM10-12 weights and dimensions - metric
Size
(kW)
Weight (kg) Center of gravity (mm) 4 point load location (kg) 6 point load location (kg)
ShippingOperating X Y ABCDABCDEF
ZM10
(10) 610 608 1303 597 103 139 210 155 65 79 98 148 119 98
ZM12
(43.75) 651 649 1285 622 116 153 216 164 74 88 107 151 124 104
Table 4: ZM10-12 unit accessory weights
Unit Accessory Weights (lbs.) Weights (kg)
Curb Rigid 14 in. (356 mm) Small Footprint 94 66
Curb Rigid 14 in. (356 mm) Large Footprint 126 61
Curb Rigid 24 in. (610 mm) Small Footprint 148 61
Curb Rigid 24 in. (610 mm) Large Footprint 222 61
A
LEFT
D
C
FRONT BA
LEFT
B
CD
FRONT E
F
XY
LEFT FRONT