HTW-EW002 is a Noise-Free room climate controller application for water-installation with fan coils, EC fan, Modulating valve. It is designed as a RTU Modbus communicated device to operate the fan coil unit / EC Fan / Modulating Valve of a zone and includes a set of functions for lighting control, zone occupancy and window
position based climate control.
Operating mode configuration
1) Occupancy detection (keycard switch contact) based climate control: In this operating mode, operation is enabled when the keycard switch input switches to the closed position. When this happens, the keypads are enabled and the user may start the operation at any time. When the keycard switch input is open, the device pushbuttons remain blocked. When the card is pulled out, the climate control system switches to Off or to the Economy mode, depending othe configuration of parameter P15. There is a programmable delay for the action to take place after the card has been pulled out. Parameter P14 is used to set the delay time.
|* AC controlling solutions
||* Configurable for 2 pipe / 4 pipe systems
|* Black-Negative/White-LCD screen Optional
||* Selectable temperature units (ºC/ºF)
|* Touch Key Pads:+T/-T/Setting/Fan speed/Model/On-Off
||* Configurable max/min/economy temperature set points
|* Completely flat tempered glass screen-protect cover
||* Configurable anti-humidity requency:10/30,5/30,5/60
|* Keycard/Window Card switch contact
||* Automatic device startup after loss of power
|* ON/Off 3 speeds / 1 speed configurable
||* Configurable NO/NC valve outputs
|* EC fan Control with starting/max. voltage configurable
||* Delayed switching to Economy when card is removed
|* Modulating Valve Output 0-10V / 2-10V configurable
||* Switching Differential Dead Band configurable
|* Internal/External/In & EX dual Sensor
||* Baud rate: 4800/9600/14400/19200 configurable
|* Noise-Free application with keypad operation buzzer
||* Full/Half keypads lock
|* 3-wire between display-relay part up to 50m no data loss
||* 2 wire /SPST/SPDT(2 pipe) valve compatible
|* 1/3/5 min auto-speed switching time configurable
||* Keycard NO & NC types configurable
|* Temperature display calibration
||* Aux. lighting Activate type: Push/Switch configurable
>> Device Inputs and outputs
1 Digital, keycard switch
1 Digital, window contact
1 Analog, ambient temperature sensor (internal)
3 Relays, fan coil speed (I,II,III)
1 Relay, chilled water valve
1 Auxiliary relay (hot water valve on 4 pipe systems / lighting on 2 pipe
1 Auxiliary relay for lamp
1 EC Fan DC 0-10V
1 Modulating Valve DC 0/2-10V
>> Company Profile
Q1: Do you supply OEM or ODM?
A: Yes, we have strong R&D sources and production ability, and already helping many international companies OEM/ODM cases with highly positive feedback.
Q2: Which payments are acceptable?
A: We accept T/T,Paypal,Western Union.
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