Noise-Free climate controller for fan coil /EC fan applications
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. A high level of comfort and appropriate climate control to ensure maximum energy savings are thus provided.
--1 EC fan output
--1 modulating valve output
--3 speed fan relay
--1 on/off valve output
--modbus communication
>> General
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 on
the 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.
2) Climate control + lighting (Lighting auxiliary):
In this operating mode, the controller may be switched on or off at any time through the front panel pushbuttons,
since there is no keycard switch contact available to block the device. The keycard switch contact is in this case
configured to operate as a lighting contact, which acts on the AUX output every time the input changes its state
(refer to installation diagrams). This operating mode is only possible on 2 pipe systems.
>> Features
| * 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
Inputs:
1 Digital, keycard switch
1 Digital, window contact
1 Analog, ambient temperature sensor (internal)
Outputs:
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
systems)
1 Auxiliary relay for lamp
1 EC Fan DC 0-10V
1 Modulating Valve DC 0/2-10V
>> Wiring Diagram
>> Application
>> Company Profile
>> FAQs
|
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. |
|
Q3: How fast can I get the quotation? |
| Please feel free to contact our team by emaill. |
