Intellitec 00-00855-000 Service Manual Download Page 8

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ELECTRONIC CLIMATE CONTROL II

SERVICE MANUAL Part No’s. 00-00855-000 / 00-00856-000

Intellitec

1485 Jacobs Rd.

Deland, FL 32724

386.738.7307

www.Intellitec.com

- 8 -

P/N 53-00855-856 Rev. C 080819

20A

30A

20A

15A

RELAY CONTROLLED

AIR CONDITIONER

A/C1

LOW VOLTAGE

WIRING

HEAT

OFF

HI FAN

LO COOL

HI COOL

AUTO COOL

FRONT

BOTH
REAR

FRONT

BOTH
REAR

FURNACES

SHED

AC 1

SHED

AC 2

ELECTRONIC
CLIMATE CONTROL

TEMPERATURE

SET

TEMPERATURE

SET

RELAY CONTROLLED

AIR CONDITIONER

A/C2

LOW VOLTAGE

WIRING

TRANSFER

RELAY
DELAY

00-00568-000

5.0kW GENERATOR

LOW VOLTAGE

WIRING

ECC

CONTROL

MODULE

00-00855-000

30 AMP
SHORE

POWER

CORD

CHANGE-

OVER

CURRENT

SENSOR

BREAKER BOX

MAIN

AC1

AC2

BR1

BR2

BR3

120VAC LINE

SENSOR

87-01001-112

Summary of Contents for 00-00855-000

Page 1: ...andard wall mount thermostats In either the LOW COOL or HIGH COOL modes the air conditioner fans run continuously at the selected speed and the compressors are controlled to maintain the set point temperature When in the AUTO mode the unit automatically controls the compressors and selects the appropriate air conditioner fan speed based on the difference between the set point temperature and the a...

Page 2: ...IMATE CONTROL ELECTRONIC CLIMATE CONTROL 75 70 TEMPERATURE SET TEMPERATURE SET There is a single function switch that controls the functions of the two air conditioner A C1 and A C2 systems The potentiometer allows the user to select a desired temperature for the system in the range of 50 to 90 degrees Fahrenheit Moving the controls down lowers the set point temperature The seven position function...

Page 3: ...t temperature goes 2 degrees above the set point temperature When the ambient temperature drops to within 1 degree of the set point the fan switches to low speed When the temperature drops to the set point the compressor turns off When the temperature drops 2 degrees below set point the fans will shut off As the ambient temperature rises the reverse procedure happens Load shedding is active INDICA...

Page 4: ...and the contacts for the rear furnace are connected to pins 4 and 5 of the same connector The relay contacts are electrically isolated from all other circuitry on the Control Module The contacts are functionally equivalent to the contacts on a wall mounted thermostat and are wired to the blue and black thermostat leads from each furnace The coach may be equipped with one or two furnaces On coaches...

Page 5: ...FF VOLTAGE J2 1 BLU COMMON 1 VDC 1 VDC J2 2 GRY LOW FAN 12 VDC 1 VDC J2 3 GRN HIGH FAN 12 VDC 1 VDC J2 4 YEL COMPRESSOR 12 VDC 1 VDC J3 1 BLU COMMON 1 VDC 1 VDC J3 2 GRY LOW FAN 12 VDC 1 VDC J3 3 GRN HIGH FAN 12 VDC 1 VDC J3 4 YEL COMPRESSOR 12 VDC 1 VDC NOTE The PC2 J2 and PC3 J3 pigtail wire colors are included for reference only to identify the function of the wires emanating from the control m...

Page 6: ...Module shuts down the associated A C compressor during the shedding sequence 2 If the 120 VAC line voltage sensed by the Line Voltage Sensor goes off This will occur during an interruption of power if the generator is not running or if the shore power cord is not plugged in 3 If the unit is recovering from load shedding the Control Module will signal the ECC Thermostat to alternately flash the red...

Page 7: ...esponding voltage A functional current sensor has a resistance of approximately 15 40 Ohms and produces an AC voltage of 0 1 VAC per Amp of current passing through the core 10 Amps 1 0 VAC The current sensor should be mounted in one of the knockouts in the 120 VAC box so that the donut shaped head is inside the box The black wire feeding the 30 Amp main breaker in the 120 VAC panel should pass thr...

Page 8: ...COOL HI COOL HI COOL AUTO COOL AUTO COOL FRONT BOTH REAR FRONT BOTH REAR FURNACES FURNACES SHED SHED AC 1 AC 1 ON ON SHED SHED AC 2 AC 2 ON ON ELECTRONIC CLIMATE CONTROL ELECTRONIC CLIMATE CONTROL 75 70 TEMPERATURE SET TEMPERATURE SET RELAY CONTROLLED AIR CONDITIONER A C2 LOW VOLTAGE WIRING TRANSFER RELAY DELAY 00 00568 000 5 0kW GENERATOR LOW VOLTAGE WIRING ECC CONTROL MODULE 00 00855 000 30 AMP ...

Page 9: ...ke sure that the pigtail keying matches connector keying 3 Check voltage at the line sensor input J7 It should be greater than 11 volts 4 Measure the DC voltage between the Power J1 4 IPX SIG J1 8 and IPX GND J1 7 pins on the control module There should be approximately 12 volts from IPX GND to Power and 9 volts from IPX GND to IPX SIG The same voltages should appear at the Thermostat If not repai...

Page 10: ...s are reversed 2 Check the continuity of the Comp Relay lead between the control module and the front A C unit B Slide the test switch on the control module towards J3 A C2 compressor and high fan should turn on If NOT 1 Check to make sure that the leads on PC3 are connected to their corresponding function at the A C2 unit The wire colors may or may not match It is likely that the common and high ...

Page 11: ...Replace the control module C Disconnect plug PC4 from the control module Placing a shorting jumper between PC4 pins 1 and 2 should cause the front furnace to energize Placing a shorting jumper between PC4 pins 4 and 5 should cause the rear furnace to energize If NOT Check the wiring between PC4 and the furnace ON indicator is lit air conditioners won t function properly SHORT indicator on the cont...

Page 12: ...DE VIC E 120 VAC N EU TR AL 2003 ECC MASTER P N 00 00855 000 HIGH H IGH LOW LOW COMP C OMP A C 2 U NIT A C1 UN IT RE LAYS BU ILT INTO A C U NIT R EL AYS B UILT IN TO A C UN IT WH ITE WHITE R ED 12 V OLT POWER BROWN YELL OW WHT BLU B LU WHT BLK BL K TO FR ON T FUR NAC E TO R EAR FUR NA CE BL AC K PWR GR ND 1 20 VA C Line Sens or P N 8 7 0 10 01 01 2 B LK BL K w W H T Stripe C OMMON BL U COMMON BLU ...

Page 13: ...0026 Dual Furnace Thermostat 00 00856 _00 Control Module 11k 13 5k BTU air conditioner 00 00855 000 F97 00XX Current Sensor 01 00703 200 F93 2000 Temp Sensors 2 00 00569 000 F93 2021 Temp Probe Cables 2 10 ft 11 00417 010 F07 9713 Temp Probe Cables 2 31 ft 11 00417 031 F07 9711 Temp Probe Cables 2 50 ft 11 00417 050 F07 9712 Temp Probe Cables 2 65 ft 11 00417 065 F07 9714 Transfer Relay Delay 00 0...

Page 14: ...ELECTRONIC CLIMATE CONTROL II SERVICE MANUAL Part No s 00 00855 000 00 00856 000 Intellitec 1485 Jacobs Rd Deland FL 32724 386 738 7307 www Intellitec com 14 P N 53 00855 856 Rev C 080819 ...

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