4
07.16 207674 Rev100
GENERAL OPERATING FEATURES:
Digital electronic thermostat, large blue LCD display with adjustable backlighting
Developed and designed to control fan coil and hydronic cassette units
Hourly and weekly programming as standard
Perennial calendar clock and integral battery as standard
RS485 bus connection fitting as standard
Device totally controlled using Modbus communications protocol
Operation with 2 pipe
− 4 pipe − fan only − heat pump (P04) systems
Control of electric heater as alternative or addition (P07)
Control of outdoor air recycling gate valve
Control of humidification/dehumidification/read only with internal humidity sensor (optional)
Automatic/manual/centralized setting of SUM/WlN operating mode switching (P09)
Continual or
thermostat−controlled fan operation (P05)
Automatic/manual fan speed switching
Air temperature monitored by internal probe or remote air probe (automatic probe recognition)
Antifreeze function even with thermostat off
Filter fouling alert as standard
Fan trigger temperature thresholds can be set separately for heating and cooling operation (P18 and
P19)
SUM/WlN switching temperature thresholds can be set separately for heating and cooling operation
(P16 and P17)
Automatic SUM/WlN mode switch on the basis of output temperature (P08 and P09)
Automatic SUM/WlN mode switch on the basis of air temperature (P09)
Centralized comfort/economy operating control
Control of
ON−OFF valves, modulating valves and floating valves integrated in a single product code
Control of conventional
3−speed fan units and energy−saving brushless units
lnputs for control of window contact, economy contact, auxiliary contact, and bathroom and fire alarm
lnputs for hotel functions, such as: bathroom alarm
− fire alarm − room empty/occupied
Outputs for hotel functions, such as: courtesy light control
− control of bathroom fan with room
occupied
lnfra−red remote control receiver (optional)
Monitoring of fan power drawdown with control of failure thresholds and alarm output (P35 and P36)
Setting/reduction of length of temperature scale controllable by parameters (P23 and P24)
Keyboard lock function
Diagnostic function for troubleshooting of thermostat and system malfunctions
Quiet regulation thanks to use of triac control technology
