Installation guide

50oo--
4500 I I
4000 I • _LEAK IN
35oo I I ._" LEA
o oooll -/
,25ooI|
_: 2000 t • ....... ....
1500 I I , VACUUM TIGHT
"1--1_ _ TOO WET
1000 I IF TIGHT
500 _TEM
0 1 2 3 4 5 6 7
MINUTES
A95424
Fig. 8---Deep Vacuum Graph
5. Repeat this procedure as indicated in Fig. 9. System will then
contain minimal amounts of contaminants and water vapor.
FINAL TUBING CHECK
IMPORTANT: Check to be certain factory tubing on both indoor
and outdoor unit has not shifted during shipment. Ensure tubes ,'ue
not nabbing against each other or any sheet metal. Pay close
attention to feeder tubes, making sure wire ties on feeder tubes are
secure and tight.
Step 7_Make Electrical Connections
DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES
[F,ELDPOWE.]
v3, fd A__
[
FIELD GROUND
-Q
WIRING j
CONTACTOR
GROUND
LUG
A91306
Fig, 10_Line Power Connections
NOTE: Install branch circuit disconnect of adequate size per
NEC to handle unit starting curtera. Locate disconnect within sight
from and readily accessible from unit. per Section 440-14 of NEC.
ROUTE GROUND AND POWER WIRES
Remove access panel to gain access to unit wiring. Extend wires
from disconnect thl_ugh power wiring hole provided and into unit
control box. Size wires per NEC but not smaller than minimum
wire size shown in Product Data Digest.
The unit cabinet must have as uninterrupted or unbroken
ground to minimize personal injury if an electrical fault
should occur. The ground may consist of electrical wire or
metal conduit when installed in accordance with existing
electrical codes. Failure to follow this warning can result in an
electric shock, fee, or death.
Be sure field wiring complies with local and national fire, safety,
and electrlzzal codes, and voltage to system is within limits shown
on unit rating plate. Contact local power company for correction of
improper voltage. See unit rating plate for recommended circuit
protection device.
NOTE: Operation of unit on improper line voltage constitutes
abuse and could affect unit reliability. See unit rating plate. Do not
in._tall unit in system where voltage may fluctuate above or below
permissible limits.
NOTEt Use copper wire only between disconnect switch and
unit.
IEVACUATE
IBREAK VACUUM WITH DRY NITROGEN [
_ACUATE]
IBREAK VACUUM WITH DRY NITROGEN [
_ACUATE]
CHECK FOR TIGHT, DRY SYSTEM
1
(|F IT HOLDS DEEP VACUUM) /
ICHARGESYSTEMI
Fig. 9--'rriple Evacuation Method
A95425
CONNECT GROUND AND POWER WIRES
Conae.ct ground _'ire to _ound connection in control box for
safety. Connect power wiring to leads provided as shown in Fig.
IO.
CONNECT CONTROL WIR[NG
Route 24v control wires through control wiring grommet and
counect to leads provided in control box. (See Fig. 11.)
Use No. 18 AWG color-coded, insulated (35°C minimum) wire. If
thermostat is located more than 100 ft from unit, as measured
along the control voltage wires, use No. 16 AWG color-coded wire
to avoid excessive voltage drop.
All wiring must be NEC Class i and must be separated from
incoming power leads.
The outdoor unit requires a minimum of 27va, 24vac control
power.
IMPORTANT: Check factory wiring and wire connections to
ensure temainations are secured properly. Check wire muting to
ensure ,,vires are not in contact with tubing, sheet metal, etc.
Step 8_lnstall Electrical Accessories
GENERAL
Refer to the individual instructions packaged with kits or acces-
sories when installing.
Available electrical accessories include latent capacity control. See
Fig. I i for typical accessory wiring diagrams.
LATENT CAPACITY CONTROL (LCC)
The purpose of an LCC is to provide a dehumidification mode to
assure a 75 percent or less system sensible heat ratio. If indoor unit
installed contains an ECM blower (such ax an FK4C. FV4A, or
40FK fan coil or a 58CVA or 58MVP gas furnace), no LCC is