RT-SVX069A-EN
17
A condensate trap must be installed at the unit due to
the drain connection being on the “negative pressure”
side of the fan.
A condensate drain line must be connected to the P-
Trap. Pitch the drain lines at least 0.5-inch for every 10
feet of horizontal run to assure proper condensate flow.
Do not allow the horizontal run to sag causing a
possible doubletrap condition which could result in
condensate backup due to “air lock”.
Filter Installation
Each unit ships with 2-inch filters installed. The
quantity of filters is determined by unit size. Access to
the filters is obtained by removing the filter access
panel.
NNoottee:: Do not operate the unit without filters.
Field Installed Power Wiring
An overall dimensional layout for the standard field
installed wiring entrance into the unit is illustrated in
“Unit Weights,” p. 13. To insure the unit’s supply
power wiring is properly sized and installed, follow the
guidelines outlined below.
NNoottee:: All field installed wiring must conform to NEC
guidelines as well as state and Local codes.
Verify that the power supply available is compatible
with the unit’s nameplate ratings. The available supply
power must be within 10 percent of the rated voltage
stamped on the nameplate. Use only copper
conductors to connect the power supply to the unit.
NNOOTTIICCEE
UUssee CCooppppeerr CCoonndduuccttoorrss OOnnllyy!!
FFaaiilluurree ttoo uussee ccooppppeerr ccoonndduuccttoorrss ccoouulldd rreessuulltt iinn
eeqquuiippmmeenntt ddaammaaggee aass tthhee eeqquuiippmmeenntt wwaass nnoott
ddeessiiggnneedd oorr qquuaalliiffiieedd ttoo aacccceepptt ootthheerr ttyyppeess ooff
ccoonndduuccttoorrss..
IImmppoorrttaanntt:: A field supplied disconnect switch must be
installed at or near the unit in accordance
with the National Electrical Code (NEC
latest edition).
Main Unit Power
WWAARRNNIINNGG
PPrrooppeerr FFiieelldd WWiirriinngg aanndd GGrroouunnddiinngg
RReeqquuiirreedd!!
FFaaiilluurree ttoo ffoollllooww ccooddee ccoouulldd rreessuulltt iinn ddeeaatthh oorr
sseerriioouuss iinnjjuurryy..
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ppeerrssoonnnneell.. IImmpprrooppeerrllyy iinnssttaalllleedd aanndd ggrroouunnddeedd
ffiieelldd wwiirriinngg ppoosseess FFIIRREE aanndd EELLEECCTTRROOCCUUTTIIOONN
hhaazzaarrddss.. TToo aavvooiidd tthheessee hhaazzaarrddss,, yyoouu MMUUSSTT ffoollllooww
rreeqquuiirreemmeennttss ffoorr ffiieelldd wwiirriinngg iinnssttaallllaattiioonn aanndd
ggrroouunnddiinngg aass ddeessccrriibbeedd iinn NNEECC aanndd yyoouurr llooccaall//
ssttaattee//nnaattiioonnaall eelleeccttrriiccaall ccooddeess..
Standard Wiring
The electrical service must be protected from over
current and short circuit conditions in accordance with
NEC requirements.
Protection devices must be sized according to the
electrical data on the nameplate.
• A field supplied disconnect switch must be installed
at or near the unit in accordance with the National
Electrical Code (NEC latest edition).
• Location of the applicable electrical service
entrance is illustrated in “Unit Weights,” p. 13.
Complete the unit’s power wiring connections onto
either; the main terminal block inside the unit
control panel, or the electric heat terminal block.
Refer to the customer connection diagram that
shipped with the unit for specific termination
points.
• Provide proper grounding for the unit in accordance
with local and national codes.
Control Power Transformer
The 24-volt control power transformers are to be used
only with the accessories called out in this manual.
Controls using 24 Vac
Before installing any connecting wiring, refer to “Unit
Weights,” p. 13 for the electrical access locations
provided on the unit and for AC conductor sizing
guidelines.
NNOOTTIICCEE
UUssee CCooppppeerr CCoonndduuccttoorrss OOnnllyy!!
FFaaiilluurree ttoo uussee ccooppppeerr ccoonndduuccttoorrss ccoouulldd rreessuulltt iinn
eeqquuiippmmeenntt ddaammaaggee aass tthhee eeqquuiippmmeenntt wwaass nnoott
ddeessiiggnneedd oorr qquuaalliiffiieedd ttoo aacccceepptt ootthheerr ttyyppeess ooff
ccoonndduuccttoorrss..
1. Use copper conductors unless otherwise specified.
2. Ensure that the AC control wiring between the
controls and the unit’s termination point does not
IInnssttaallllaattiioonn
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