Millennium Enterprises Z34 User Manual
882108-YIM-B-1012
12
Johnson Controls Unitary Products
RIGGING AND HANDLING
This unit is not designed to be handled with a fork-truck.
Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation. Rig
the unit by attaching cable slings to the lifting lugs provided in
the unit base rails. Spreaders MUST be used across the top
of the unit. Refer to Figure 2.
packaging until the unit is near the place of installation. Rig
the unit by attaching cable slings to the lifting lugs provided in
the unit base rails. Spreaders MUST be used across the top
of the unit. Refer to Figure 2.
•
Rig with six cables and spread with three 98-inch
spreaders across width of unit.
spreaders across width of unit.
•
Refer to Tables 8 and 11 for unit weight.
•
Center of gravity includes economizer, exhaust or return
air fan (Refer to Table 12).
air fan (Refer to Table 12).
NOTES: Basic Unit = cooling only, 10hp FC fan.
+ Econ = +235lb
+ Heat = single stage gas, 180 lb
+ Power Exhaust = modulating 7.5hp
+ Heat = single stage gas, 180 lb
+ Power Exhaust = modulating 7.5hp
CLEARANCES
All units require certain clearances for proper operation and
service. Installer must make provisions for adequate combus-
tion and ventilation air in accordance with section 5.3, Air for
Combustion and Ventilation of the National Fuel Gas Code
tion and ventilation air in accordance with section 5.3, Air for
Combustion and Ventilation of the National Fuel Gas Code
ANSI Z223.1 or Sections 7.2, 7.3 or 7.4 of CAN/CGA B149
installation codes-Latest Edition and/or applicable provisions
of the local building codes. Refer to Figure 8 for clearances
required for combustible construction, servicing, and proper
unit operation.
of the local building codes. Refer to Figure 8 for clearances
required for combustible construction, servicing, and proper
unit operation.
All panels must be secured in place when the unit
is lifted.
The condenser coils should be protected from
damage by the rigging cables with plywood or
other suitable material.
damage by the rigging cables with plywood or
other suitable material.
An adhesive backed cover is provided over the
outside of the combustion air inlet opening on gas
fired units to prevent moisture from entering the
unit which could cause damage to electrical com-
ponents. Allow this closure label to remain in place
until the combustion air hood is to be installed
(Refer to Figures 7).
fired units to prevent moisture from entering the
unit which could cause damage to electrical com-
ponents. Allow this closure label to remain in place
until the combustion air hood is to be installed
(Refer to Figures 7).
TABLE 11: UNIT CORNERWEIGHT
UNIT
DESCRIPTION
25 TON
30 TON
40 TON
A
B
C
D
A
B
C
D
A
B
C
D
Basic Unit
870
949
1352
1239
930
972
1360
1303
969
969
1454
1454
Basic Unit With
Economizer
1018
1111
1313
1203
1076
1124
1328
1272
1058
1058
1482
1482
Basic Unit With
Economizer and
Gas or Electric Heat
994
1084
1418
1300
1073
1073
1403
1403
1102
1055
1503
1570
Basic Unit With
Economizer and
Gas or Electric Heat
and Power Exhaust
1220
1275
1318
1262
1275
1275
1410
1410
1335
1278
1485
1551
TABLE 12: UNIT CENTER OF GRAVITY
MODEL
25 TON
30 TON
40 TON
X
Y
X
Y
X
Y
Basic Unit
99”
48”
100”
47”
96”
46"
Basic Unit /w
Econ.
110”
48”
110”
47”
100”
46"
Basic Unit /w
Econ. & Gas or
Elect. Heat,
Steam or Hot
Water Heat
104”
48”
104”
46”
99”
45"
Basic Unit /w
Econ. & Gas or
Elect. Heat, &
Power Exhaust
118”
47”
114”
46”
111”
45"
(COOLING OPERATION) Do not permit overhang-
ing structures or shrubs to obstruct condenser air
discharge outlet, combustion air inlet or vent out-
lets.
ing structures or shrubs to obstruct condenser air
discharge outlet, combustion air inlet or vent out-
lets.