• Control Module Communication.4 Carrier Comfort Network Interface.4 OPERATING DATA. • CONTENTS (cont) • LEAD/LAG DETERMINATION • CAPACITY SEQUENCE DETERMINATION • CAPACITY CONTROL OVERRIDES Head Pressure Control.27 •. • Information is transmitted between modules via a 3-wire com- UNIT 30GTN,R munication bus or LEN (Local Equipment Network). The — — CCN (Carrier Comfort Network) bus is also supported. Con- — nections to both LEN and CCN buses are made at TB3. • YELLOW LED — The MBB has one yellow LED. The Carrier Comfort Network (CCN) LED will blink during times of network communication. Ford focus torque converter installation. This video shows the proper way to install a torque converter and install an Automatic Transmission. Produced by enginefactory.com Home of the most complete Live Run Turn Key Crate Engines. ![]() Operation & Maintenance Manual Introduction This guide has been prepared for the operator of the air conditioning unit. It contains basic instructions for the daily operation of the air conditioning unit as well as safety information, maintenance and service, the maintenance chart and the inspection chart. • DATA COMMUNICATION PORT Fig. 3 — 24 V Control Schematic, Unit Sizes 080-110, 230B-315B Fig. 3 — 24 V Control Schematic, Unit Sizes 080-110, 230B-315B. • DATA COMMUNICATION PORT Fig. 4 — 24 V Control Schematic, Unit Sizes 130-210, 230A-315A, 330A/B-420A/B. • LEN (LOCAL EQUIPMENT NETWORK) CEPL130346-01 STATUS Fig. 6 — Enable/Off/Remote Contact Switch, Emergency On/Off Switch, YELLOW LED - CCN (CARRIER COMFORT NETWORK) Fig. 5 — Main Base Board RESET BUTTON (SIZES 130-210 AND ASSOCIATED MODULES ONLY) and Reset Button Locations. • OPERATING DATA Sensors — The electronic control uses 4 to 10 thermistors to sense temperatures for controlling chiller operation. These sensors are outlined below. 7-10 for thermistor locations. Thermistors T1-T9 are 5 kΩ at 77 F (25 C). • 040-070 080-110 AND ASSOCIATED MODULAR UNITS* 130-210 AND ASSOCIATED MODULAR UNITS* *When thermistor is viewed from perspective where the compressor is on the left and the cooler is on the right. 8 — Thermistor T3 and T4 Locations. • LEGEND EXV — Electronic Expansion Valve Fig. 9 — Compressor Thermistor Locations (T7 and T8) Fig. 10 — Typical Thermistor Location (30GTN,R and 30GUN,R 210, 315A, 390A, 420A/B Shown) • The space temperature sensor includes a terminal block (SEN) and a RJ11 female con- nector. The RJ11 connector is used to tap into the Carrier Com- fort Network (CCN) at the sensor. To connect the space temperature sensor (Fig. • Thermostatic Expansion Valves (TXV) — 30GTN,R and 30GUN,R 040-110 units are available from the factory with conventional TXVs with liquid line solenoids. The liquid line solenoid valves are not intended to be a mechanical shut-off.
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