• An all electronic control system that can control a remote condenser fan bank, cycling up to six fan banks or five banks and a split condenser valve.

CF 1000 Condenser Fan Control

CONTROL SYSTEM

• Microprocessor based

• Program logic stored within non-volatile Flash EEPROM or OTP EPROM

1. Setpoints and system configuration stored within serial EEPROM

2. Clock is Y2K compliant, leap year compatible until year 2100 and is battery backed for a minimum of 5 years

• Menu driven controls with all operating sequences and control algorithms included.

• The control has non-volatile program memory and a battery backed clock in the event of a power outage.

• All programmable options are installed via a Yes/No or Installed/Not-installed question.

• Keypad -- Front Panel accessible with 4 tactile key switches.

• Key Assignments --Up, Down, Enter/Select, Exit.

• Display -- 1 line by 10 character Vacuum Fluorescent Display (FIP). Display will shut off after 30 minutes. It will turn on when any key is pressed.

• Power --120/208/240VAC, 50/60HZ 40VA

• Housing -- Metal Cabinet, NEMA 1

INPUTS

• Discharge, or Head, Pressure

• Liquid Line Drop Leg Temperature Sensor

• Ambient Temperature Sensor

• Heat Reclaim Relay Status

• Gas Defrost Status

Pressure Transducers -- 3-wire, V+ Signal Ground, analog 1 to 6 VDC signal Ranges--0 to 100 PSI, 0 to 200 PSI, 0 to 500 PSI

Temperature Sensors -- 2-wire, Microprocessor based, -40 to 158 °F

Digital Inputs -- All Digital Inputs are low voltage, 5VDC open or close signal inputs. All digital signal sources are non-polarity specific.

OUTPUTS--Control Relays - 7 Relays

• All Relay Outputs are 1 Form C SPDT rated for 250VAC and 3Amp per circuit.

• Each relay circuit is fused with a 3Amp Slowblow fuse on the common leg.