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ROOF TOP UNIT PREPARATION
1.
Maximum weight of unit is — 300 Lbs (crated).
2.
Remove crating and retrieve hardware bag that is
inside of ERS.
3.
All ERS door panels must be in place for rigging.
4.
Use straps to lift unit.
1.
Disconnect all power to rooftop unit.
2.
Open filter access door. If installing pivoting wheel
v e r i f y a n d / o r i n s t a l l a n i n te r n a l m o d u l a t i n g
economizer.
3.
Remove the rooftop unit horizontal return air access
panels. Also remove any hoods and/or power exhaust
equipment. Discard hoods, power exhaust equipment,
and horizontal return air panels.
See Figure 1.
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or mai ntenance, turn the
electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
CAUTION
GENERAL
REQUIREMENTS
SHIP PING DAMAGE
RIG GING UNIT FOR LIFTING
These instructions are intended as a general guide and do
not supersede local codes in any way. Authorities having
jurisdiction should be consulted before installation.
When installed, the unit must be electrically wired and
grounded in accordance with local codes or, in the
absence of local codes, with the current National Electric
Code, ANSI/NFPA No. 70.
Check unit for shipping damage. Receiving party should
contact last carrier immediately if shipping damage is
found.
REMOVE PANEL
Figure 1
Figure 2
Figure 3
Figure 4
4.
If a factory install ERS Harness (J298/P153) is
installed go to
Step 5
, otherwise use the provided
harness from the hardware bag within the ERS and
complete the following steps.
A. Locate the field harness from the hardware bag
shipped inside the ERS.
B. With door panels open on the economizer and
control side of RTU, route the wire harness bare
ends (3 wires Green, Pink and Black) from
economizer section along the RTU wire at the top
of unit and through panel above the filter rack.
See
Figure 2.
C. Follow wires all the way through blower section.
See Figure 3.
D. Continue to follow wires along the top and through
divider panel into the control center.
See Figure 4.
Summary of Contents for 50P2050 H Series
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