Carrier 48LC - Page 32

32
Table 6 -- Menu Structure
a
(cont)
Menu Parameter
Parameter
Default
Value
Parameter
Range and Increment
b
EXPANDED PARAMETER NAME
Notes
SETPOINTS MAT SET 53_F
(12_C)
38 to 65_F;
(3 to 18_C)
increment by 1
SUPPLY AIR SETPOIN T
Setpoi nt determines where the economizer wi ll modulate the OA damper to
maintain the mixed air temperature.
SeeMenuNote2.
LOW T LOCK 32_F
(0_C)
---45 to 80_F;
(---43 to 27_C)
increment by 1
COMPRESSOR LOW TEMPERATURE LOCKOUT
Setpoi nt determines outdoor temperature when the mechanical cooling
canno t be turned on.
DRYBLB SET 63_F
(17_C)
48 to 80_F
(9 to 27_C)
increment by 1
OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT
Setpoi nt determines where the economizer wi ll as sume outdoor air
temperature is good for free cooling; e.g.: at 63_F(17_C), unit will
economize at 62_F (16.7_C) and below and not economize at 64_F
(17.8_C) and above. There is a 2_F(1.1_C)deadband.
SeeMenuNote3
ENTH CURVE ES3 ES1, ES2, ES3, ES4, or
ES5
ENTHALPY CHANGEOVER CURVE
(Re q uires enthalp y senso r option)
Enthalp y bounda ry “curv e s” for eco nom izing using si ng le enthalp y.
DCV SET 1100ppm 500 to 2000 ppm;
increment by 100
DEMA N D CONTR OL VENTI LATI O N SETPOINT
Displays only i f CO
2
se nsor i s connec ted. Setp o int for Demand Contro l
Ventilation of space. Above the setpoint, the OA dampers will modulate
open to bring in additional OA to maintain a space ppm level below the
setpoint.
MIN POS L 6.0 V 2to10Vdc VENTILATION MINIMUM POSITION AT LOW SPEED
Displays ONLY if a CO
2
se nsor i s NOT co nnected.
MIN POS H 4.4 V 2to10Vdc VENTILATION MINIMUM POSITION AT HIGH SPEED
Displays ONLY if a CO
2
se nsor i s NOT co nnected.
VENTMAX L 6.0 V 2to10Vdc DCV MAXI M UM DAMP ER PO SITIO N AT LOW SPEED
(Requi res CO
2
se nsor c onne cted)
VENTMAX H 4.4 V 2to10Vdc DCV MAXI M UM DAMPER P OSITI O N A T HIG H SPEED
(Requi res CO
2
se nsor c onne cted)
VENTMIN L 3.7 V 2to10Vdc DCV MINIMUM DAMPER P OSITI O N A T LO W SPEED
(Requi res CO
2
se nsor c onne cted)
VENTMIN H 2.8 V 2to10Vdc DCV MIN IMUM DAMP ER POS ITION A T HIG H SPEED
(Requi res CO
2
se nsor c onne cted)
EXH1 L SET 65% 0 to 100%;
Increment by 1
EXHAUST FA N STA G E 1 SETPOINT AT L OW SP EED
Set p o int for OA dam p e r position when exhaust fan1 is powered by the
economizer
EXH1 H SET 50% 0 to 100%;
Increment by 1
EXHA UST FA N STA G E 1 SETPOI N T AT HIG H SPEED
Set p o int for OA dam p e r position when exhaust fan1 is powered by the
economizer
EXH2 L SET 80% 0 to 100%;
Increment by 1
EXHAUST FA N STA G E 2 SETPOINT AT L OW SP EED
Set p o int for OA dam p e r position when exhaust fan1 is powered by the
economizer. Only used when A UX1---O is set to EHX2.
EXH2 H SET 75% 0 to 100%;
Increment by 1
EXHA UST FA N STA G E 2 SETPOI N T AT HIG H SPEED
Set p o int for OA dam p e r position when exhaust fan1 is powered by the
economizer. Only used when A UX1---O is set to EHX2.
48HC48LC