PRODUCT DATA & INSTALLATION
Bulletin K40-KLC-PDI-3
1068825
We are on the Internet www.keepriterefrigeration.com
Lead Lag
Control Panel
Model KLC
Electrical Power: 115/1/60, 208-230/1/60, 200-220/1/50
NOMENCLATURE
KLC 1 - I S2 A
Model
KeepRite Lead Lag
Control Panel
Model Code
1 = Standard
2 = With Alarm/Auto Back-Up
Application
I = Indoor
Voltage
S1 = 115/1/60
S2 = 208-230/1/60
S6 = 200-220/1/50
Series / Generation
A = 1st Generation
•For use on TWO independent refrigeration systems using pumpdown control mode. (Thermostat wired into liquid line solenoid valve).
•Panel can be mounted at condensing unit on indoor installations or can be mounted remote inside on a wall when used with outdoor condensing units.
•Designed to alternate each system automatically at a preset 24 hour time period. (can be readjusted from a 6 to 300 hour time period).
Three position toggle switch provides:
1.Condensing Unit #1 runs only.
2.Lead Lag mode. (alternates unit #1 and unit #2 automatically).
3.Condensing unit #2 runs only.
•KLC1 model offers low cost simple operation by automatically (pre-set time) or manually alternating each unit.
•KLC2 model offers the same as KLC1 and includes supplemental refrigeration backup during abnormal load situations or in the event one refrigeration system fails. (Includes alarm dry contacts)
•Panel is suitable for use with Air, Electric and Hot Gas defrost systems.
KLC |
TYPICAL SYSTEM LEAD-LAG WIRING |
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LOW PR. |
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CONTROL |
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COMPR |
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CONT. |
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LEAD |
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C1 |
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COMPR |
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CONDENSING UNIT |
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CLOCK |
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LIQUID |
SPACE |
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LINE |
THERMOSTAT |
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DEFR. |
FAN |
SOLENOID |
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CONT. |
CONT. |
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EVAPORATOR |
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REFER TO ACTUAL |
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CONDENSING UNIT |
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WIRING DIAGRAM ON |
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UNIT CONTROL PANEL |
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WITH KLC2 |
FAN DELAY/ |
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DEFROST TERM. |
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THERMOSTAT |
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L1 |
L2 GND |
AUTO |
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BACK-UP |
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THERMOSTAT |
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DEFROST HEATERS |
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TYPICAL |
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LEAD |
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SYSTEM #1 |
(LEAD) |
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LAG |
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CONTROL |
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PANEL |
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R1 |
R2 |
ALARM |
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LOW PR. |
DRY CONTACT |
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CIRCUIT |
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CONTROL |
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COMPR |
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CONT. |
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LAG |
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C2 |
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COMPR |
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CONDENSING UNIT |
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CLOCK |
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LIQUID |
SPACE |
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LINE |
THERMOSTAT |
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DEFR. |
FAN |
SOLENOID |
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CONT. |
CONT. |
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EVAPORATOR |
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FAN DELAY/ |
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DEFROST TERM. |
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THERMOSTAT |
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TYPICAL |
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DEFROST HEATERS |
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SYSTEM #2 |
(LAG) |
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- 2 - |
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KLC
KLC1 PANEL WIRING
CONTROL PANEL WIRING DIAGRAM: 230-1-60 Hz
TO 208/230-1-60 OR 200/220-1-50 POWER SUPPLY
L1 L2
15A FUSE
CLASS CC
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T1 TIMER |
SET: B MODE |
6 |
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LEAD-LAG |
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HRS UNIT |
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#22 |
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#21 |
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R3 |
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24 (0-30 RANGE) |
BL |
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BL |
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RD #5 |
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1 |
4 |
10 |
T |
2 |
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#6 |
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4 |
RD #7 |
2 |
R1 |
7 |
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RD |
1 |
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RD #8 |
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3 |
RD #9 |
2 |
R2 |
7 |
RD #3 |
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RD #4 |
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3 |
1 |
2 |
RD #10 |
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LEAD |
AUTO |
LAG |
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6 |
4 |
5 |
RD #11 |
2 |
R3 |
7 |
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DPDT TOGGLE |
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SWITCH* |
#12 |
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(BOTTOM VIEW) |
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RD |
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BL 26 |
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RD #1 |
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RD 13 |
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LEAD-LAG CONTROL PANELSTANDARD BASIC PANEL 230V CONTROL CIRCUIT
CONTROL PANEL
COMPONENT LAYOUT
FUSES |
TIMER OVERRIDE |
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RELAY |
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R3 |
T1 |
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TIMER |
LEAD AUTO LAG |
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MODE SWITCH |
LEAD |
LAG |
RELAY |
RELAY |
R1 |
R2 |
BL #23
*
LEAD AUTO LAG
MODE SWITCH
#24 |
(TOP VIEW) |
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BL |
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2 |
1 |
3 |
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#25 |
5 |
4 |
6 |
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BL |
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R1 R2
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NOTES |
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C1 |
C2 |
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1. USE COPPER CONDUCTORS ONLY |
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LEAD TIMECLOCK |
LAG TIMECLOCK |
2. USE 90°C WIRE (OR HIGHER) |
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3. OPTIONAL COMPONENT MAY BE FACTORY |
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CONTACTOR |
CONTACTOR |
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INSTALLED OR SUPPLIED BY OTHERS |
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COIL |
COIL |
4. HEATER LOADS ARE NOT CONCURRENT |
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(AT COND UNIT #1) |
(AT COND UNIT #2) |
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WITH REFRIGERATION LOADS. |
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5. OVERCURRENT PROTECTION FOR EACH |
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EVAPORATOR MUST NOT EXCEED MAXIMUM |
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VALUE SHOWN ON EVAPORATOR NAMEPLATES. |
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6. MAY BE FACTORY INSTALLED-MOUNTED |
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AND WIRED ON EVAPORATOR |
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(PRE-ASSEMBLED MODELS). |
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ON MULTIPLE PRE-ASSEMBLED EVAPORATORS |
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WIRE SECOND EVAPORATOR SOLENOID IN |
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PARALLEL WITH FIRST. |
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7. ALL FUSES TO BE CLASS CC OR J AND |
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VOLTAGE RATED EQUAL (OR HIGHER) THAN |
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OPERATING VOLTAGE. |
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CONDUCTORS/WIRNG |
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FACTORY WIRING |
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WIRING BY OTHERS |
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OPTIONAL COMPONENT WIRING |
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(SOME OPTIONAL COMPONENTS |
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MAY BE FACTORY WIRED.) |
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G=GREEN |
RD=RED BL=BLUE ALL OTHER BLACK |
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ALL FIELD WIRING MUST BE DONE IN |
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COMPLIANCE WITH ALL APPLICABLE LOCAL |
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AND NATIONAL CODES. |
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DATE: |
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DIAGRAM NUMBER |
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CPB-S2-TLC1 |
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Feb7/07 |
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