22
TK 56702-1-OP-EN
D
DA
AN
NG
GE
ER
R
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e!!
High voltage AC power is present whenever the unit is operating in the
Electric Standby mode and whenever the unit is connected to external
standby power. Voltages of this magnitude can be lethal. Exercise extreme
caution when working on the unit.
SmartPower Standard Features
The following features are standard equipment on units equipped with
SmartPower Electric Standby.
A
Au
utto
om
ma
attiicc D
Diie
esse
ell//E
Elle
eccttrriicc S
Se
elle
eccttiio
on
n:: The unit will automatically switch to
electric operation when a power cord is connected and the standby power is
switched On.
O
Ov
ve
errllo
oa
ad
d R
Re
ella
ay
y:: The overload relay is self-resetting.
H
Ho
ott G
Ga
ass H
He
ea
att:: Hot gas heat is utilized on all units.
A
Au
utto
om
ma
attiicc P
Ph
ha
asse
e C
Co
orrrre
eccttiio
on
n:: The control system features two motor
contactors. This allows correct motor rotation regardless of phase rotation
on the incoming power.
SmartPower Optional Features
The following features are available as options on units equipped with
Electric Standby.
•
Auto Switching
•
Electric Heater Strips
Unit Protection Devices
H
Hiig
gh
h P
Prre
essssu
urre
e C
Cu
utto
ou
utt S
Sw
wiittcch
h ((H
HP
PC
CO
O)):: This normally closed switch
monitors the discharge pressure at the compressor. It opens on high
discharge pressure to shut the unit down to prevent damage.
E
Elle
eccttrro
on
niicc T
Th
hrro
ottttlliin
ng
g V
Va
allv
ve
e ((E
ET
TV
V)):: This component is an electromechanical
control device used to limit the suction pressure to the compressor. The
valve is controlled by the microprocessor controller.
E
En
ng
giin
ne
e O
Oiill P
Prre
essssu
urre
e S
Sw
wiittcch
h//S
Se
en
nsso
orr:: The engine oil pressure switch/sensor
is located on the filter head above the bypass oil filter. Engine oil pressure
should rise immediately on starting. If engine oil pressure drops below 11 ±
3psig (76 ± 20kPa), the switch/sensor signals the microprocessor to stop the
engine.