trane

The CH535 chilled water temperature control is fulfilled through a microprocessor based controller, monitoring water and refrigerant temperature as long as refrigerant pressure.

The Micropocessor based controller is supplied factory mounted, fully wired, configured and tested in factory. The controller ensures compressor and fan sequence (load control), fault detection, diagnostic and supervision.

Main features

High and low refrigerant pressure protection
Load limit control to limit compressor loading on high return water temperature
Condenser fan sequencing with automatically cycling in response to ambient condensing pressure
Compressors anti-short cycle timer protection adjustable
Automatic compressor lead-lag, to even out run hours and compressors starts
Phase reversal/single phasing protection
Low ambient lockout control with adjustable set point
Integrated RS485 serial port to allow BMS connectivity
Options for communication protocols: ModBus, LonTalk and BACnet should be available

The user display interface allows complete graphic management through icons and touchscreen display:

LCD display, 6 navigation buttons
Clear messages, 15 languages
EXV: Electronic eXpansion Valves
Customer com package: ext. chilled water setpoint, ext. demand limit, analog capacity output, programmable relays
Loss of refrigerant charge (2015)
Leaving chilled water setpoint adjustment
Entering and leaving water temperatures display
Condenser pressure per citcuit
Suction pressure per circuit
Air ambient temperature
Condensing temperature per circuit
Suction temperature per circuit
Safety control readouts on the user display:

Low chilled water temperature detection
High refrigerant pressure
Loss of chilled water flow
Contact to external shut-down per circuit
Motor current overload
Phase reversal/unbalance/single phasing
Failure of leaving water temperature sensor used to drive the set point
Compressor status (on/off)

+ Overview

The CH535 chilled water temperature control is fulfilled through a microprocessor based controller, monitoring water and refrigerant temperature as long as refrigerant pressure.

The Micropocessor based controller is supplied factory mounted, fully wired, configured and tested in factory. The controller ensures compressor and fan sequence (load control), fault detection, diagnostic and supervision.

Main features

High and low refrigerant pressure protection
Load limit control to limit compressor loading on high return water temperature
Condenser fan sequencing with automatically cycling in response to ambient condensing pressure
Compressors anti-short cycle timer protection adjustable
Automatic compressor lead-lag, to even out run hours and compressors starts
Phase reversal/single phasing protection
Low ambient lockout control with adjustable set point
Integrated RS485 serial port to allow BMS connectivity
Options for communication protocols: ModBus, LonTalk and BACnet should be available

+ Display

The user display interface allows complete graphic management through icons and touchscreen display:

LCD display, 6 navigation buttons
Clear messages, 15 languages
EXV: Electronic eXpansion Valves
Customer com package: ext. chilled water setpoint, ext. demand limit, analog capacity output, programmable relays
Loss of refrigerant charge (2015)
Leaving chilled water setpoint adjustment
Entering and leaving water temperatures display
Condenser pressure per citcuit
Suction pressure per circuit
Air ambient temperature
Condensing temperature per circuit
Suction temperature per circuit
Safety control readouts on the user display:

Low chilled water temperature detection
High refrigerant pressure
Loss of chilled water flow
Contact to external shut-down per circuit
Motor current overload
Phase reversal/unbalance/single phasing
Failure of leaving water temperature sensor used to drive the set point
Compressor status (on/off)

+ Documentation