ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service informa-
tion pack upon completion of work.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
Installer’s Guide
A. GENERAL INFORMATION
▲
WARNING
!
THIS INFORMATION IS FOR USE BY INDIVIDUALS HAVING
ADEQUATE BACKGROUNDS OF ELECTRICAL AND MECHANI-
CAL EXPERIENCE. ANY ATTEMPT TO REPAIR A CENTRAL
AIR CONDITIONING PRODUCT MAY RESULT IN PER-
SONAL INJURY AND/OR PROPERTY DAMAGE. THE MANU-
FACTURER OR SELLER CANNOT BE RESPONSIBLE FOR
THE INTERPRETATION OF THIS INFORMATION, NOR CAN
IT ASSUME ANY LIABILITY IN CONNECTION WITH ITS USE.
▲
CAUTION
!
To prevent shortening its service life, the air handler should
not be used during the finishing phases of construction. The
low return air temperatures can lead to the formation of con-
densate. Condensate in the presence of chlorides and fluo-
rides from paint, varnish, stains, adhesives, cleaning com-
pounds, and cement creates a corrosive condition which may
cause rapid deterioration of the cabinet and internal compo-
nents.
These instructions do not cover all variations in systems or
provide for every possible contingency. Should further in-
formation be desired or particular problems arise which
are not covered sufficiently by this manual, contact your
local distributor or the manufacturer as listed on the air
handler nameplate.
These Air Handlers are shipped from the factory in the
upflow or horizontal right configuration and are fully con-
vertible to downflow or horizontal left. Refer to Section B
beginning on page 3 for additional information.
INSPECTION
Check carefully for any shipping damage. This must be re-
ported to and claims made against the transportation com-
pany immediately. Check to be sure all major components
are in the unit. Any missing parts should be reported to
your supplier at once, and replaced with authorized parts
only.
Convertible Variable Speed –
Air Handlers 2 1/2 - 5 Ton
TWE031E13FB; TWE037E13FB;
TWE040E13FB; TWE049E13FB;
TWE065E13FB
Contents
General Information .............................................. 1
Installation Limitations & Recommendations ............................ 1
Unit Installation ...................................................... 3
Vertical Upflow ......................................................................... 3
Vertical Downflow .................................................................... 3
Horizontal Left .......................................................................... 4
Horizontal Right ....................................................................... 4
Refrigerant Piping ................................................. 5
Condensate Drain Piping ...................................... 6
Electrical - Wiring ................................................... 7
Airflow Adjustment ................................................. 9
Hook Up Diagrams ................................................. 8
Outline Drawings ................................................. 10
Checkout Procedures .......................................... 12
INSTALLATION LIMITATIONS & RECOMMENDATIONS
The general location of the air handler is normally se-
lected by the architect, contractor and/or home owner for
the most effective application and satisfaction.
These air handlers are suitable for installation in a
closet, alcove or utility room with free, non-ducted, air
return, using the area space as a return air plenum.
With ducted supply air, if the minimum clearances to
combustible materials and service access are observed,
the above installations are suitable.
NOTE: Condensation may occur on the
surface of the air handler when installed in
an unconditioned location. When units
are installed in unconditioned spaces,
verify that all electrical and refrigerant line
penetrations on the air handler are sealed
completely.
This area may also be used for other purposes, includ-
ing an electric hot water heater - but in no case shall
18-GE01D1-9
