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53
Supply-Fan Shipping Brackets —
Supply-fan ship-
ping brackets (4 per unit) must be removed from each corner of
the fan sled before starting unit.
UNIT SIZES 030-050
1. To remove brackets, raise fan sled by turning adjusting
bolt counterclockwise until spring is compressed slightly.
2. Remove screws holding shipping bracket to unit cross
rail.
3. Remove shipping bracket (top of bracket is slotted so that
it will slide out).
4. After removing all shipping brackets, level fan sled using
the adjusting screws. On all 4 corners, dimension from
cross rail to fan sled should be as shown in Fig. 50.
UNIT SIZES 055-070 — To remove shipping brackets, re-
move the 6 screws holding each bracket to the cross rail. There
are 8 brackets per unit. See Fig. 51.
After removing all shipping brackets, level fan sled using
the adjusting screws. On all 4 corners dimension from cross
rail to fan sled should be as shown in Fig. 51.
UNIT SIZES 075-105 — Supply-fan shipping brackets must
be removed from each corner of the fan sled before starting
unit. To remove shipping brackets, remove the 6 screws hold-
ing each bracket to the cross rail. There are 4 brackets per unit.
See Fig. 52.
After removing all shipping brackets, level fan sled using
the adjusting screws. On all 4 corners dimension from cross
rail to fan sled should be as shown in Fig. 52.
Return/Exhaust-Fan Shipping Brackets (48Z6,
Z8 Units) —
Return/exhaust fan shipping brackets must be
removed from each corner of the fan sled before starting unit.
To remove shipping brackets, remove 2 screws holding
each bracket to the cross rail. There are 4 brackets per unit.
After removing all shipping brackets, level the fan using the
adjustment screws. On all 4 corners the dimension from cross
rail to fan sled should be as shown in Fig. 53.
FS
BP
OACFM
TRANSDUCER
DP
RF
CFM
PP
SS
Fig. 49 — Auxiliary Control Box Details
(Size 075-105 Units with Return Fan)
LEGEND
BP —
Building Pressure
Transducer
OACFM —
Outdoor Air Cfm
Sensor Transducer
DP —
Duct Pressure
Transducer
PPSS
—
Plenum Pressure
Safety Switch
FS —
Filter Switch
RFCFM —
Return Fan Cfm Sensor Transducer
Fig. 50 — Shipping Brackets; Size 030-050 Units
Fig. 51 — Shipping Brackets;
Size 055-070 Units
Summary of Contents for 48ZG
Page 15: ...15 Fig 3 Roof Curb Sizes 075 105 with High Capacity Power Exhaust...
Page 16: ...16 Fig 4 Condenser Section Roof Curb Size 055 and 060 Only...
Page 17: ...17 Fig 5 Condenser Section Roof Curb Size 070 105 Only...
Page 24: ...24 Fig 15 Base Unit Dimensional Drawing 48ZG ZN030 035 Standard Chassis...
Page 25: ...25 Fig 16 Base Unit Dimensional Drawing 48ZG ZN040 050 Standard Chassis...
Page 26: ...26 Fig 17 Base Unit Dimensional Drawing 48ZG ZN055 070 Standard Chassis...
Page 27: ...27 Fig 18 Base Unit Dimensional Drawing 48ZG ZN075 105 Standard Chassis a48 8451...
Page 28: ...28 Fig 19 Base Unit Dimensional Drawing 48ZG ZN030 035 Extended Chassis...
Page 29: ...29 Fig 20 Base Unit Dimensional Drawing 48ZG ZN040 050 Extended Chassis...
Page 30: ...30 Fig 21 Base Unit Dimensional Drawing 48ZG ZN055 060 Extended Chassis a48 8452...
Page 32: ...32 Fig 23 Base Unit Dimensional Drawing 48Z6 Z8075 105 Units with Return Exhaust Fan a48 8454...
Page 66: ...66 Fig 80 CCN Connections COMM BOARD MBB J5...
Page 67: ......