User manual HONEYWELL CM900 WIRELESS INSTALLATION

[. . . ] Within a typical residential building the two products should communicate reliably within a 30m range. It is important to take into consideration that walls and ceilings will reduce the RF signal. The strength of the RF signal reaching the receiver box depends on the number of walls and ceilings separating it from the room thermostat, as well as the building construction - the diagram below illustrates an example of typical signal strength reduction. Walls and ceilings reinforced with steel or plasterboard walls lined with metal foil reduce the RF signal significantly more. [. . . ] The green LED indicates the status of the relay output: · Green LED on = relay on · Green LED off = relay off HC60NG Receiver Box Push button and relay status LED's 3. 2 Temporary Manual Override Pressing the receiver box button will override the current relay position. As soon as the next signal is received from the room thermostat the receiver box will return back to automatic operation as the automatic control has higher priority than manual operation. 3. 3 Communications Loss If the RF communication is lost for a period of 1 hour the red LED will illuminate to indicate that no RF messages have been received during the last hour. The receiver box will also enter the failsafe mode as selected in Installer Mode (see section 4. 2 HC60 Receiver Box Fail-Safe Mode Setup). To allow manual control of the receiver box output manual override is available in fail-safe mode. When RF communication is restored the receiver box will automatically return to normal operation. You can now use the USER GUIDE supplied with the room thermostat to demonstrate how it works to the home owner. 4) Installer Mode Installer Mode is used to alter the system settings for specific applications, to use the special features of the room thermostat in a different way or to alter the factory preset parameters. Parameters are divided into two groups: - Category 1 parameters ­ Room Thermostat Setup - Category 2 parameters ­ System Setup. These are all listed in section 4. 5 Installer Parameters Table. CM900 Wireless - Programmable Room Thermostat 4. 1 Entering Installer Mode 1 DAY COPY DAY 2 OFF DATE PROG AUTO MAN OFF CM9 1. . Move the slider switch to the OFF mode. button and the two & The unit will display the first parameter of installer parameter group category 1 (from Parameter n. 1 to n. 19) as shown 3 Press the or to change factory setting. The display will flash indicating that a change has been made. 4 Press the green button to confirm the change. The display will stop flashing. 5 Press button to go to the next parameter. 6 Press button to go to Installer parameter group category 2 ( ) (from Parameter n. 1 to n. 14). 7 To exit the installer mode, move the slider switch to the AuTO or MAN positions. 4. 2 HC60NG Receiver Box Fail-Safe Mode Setup The failsafe mode defines the receiver box output relay status if the RF communication is lost (e. g. when the room thermostat stops communicating due to discharged batteries). The factory setting keeps the relay permanently off when communications is lost. If this factory setting needs to be changed follow the instructions below: 1. Explain to the end user how to switch between these modes using the and buttons and ensure the cooling program is modified as required. Heat Pump / AirConditioner Fan Coil 3 6 4 1 Set 1:Ot parameter to 4 Set 2:Cr parameter to 3 No changes required 4. 4 Using the Special Features of the Room Thermostat Special Feature: Optimisation (Variable Start Time) Heating or Cooling Operation Summer/Winter Auto time change Temperature Offset Description: The thermostat will adjust the start time in the morning/afternoon so the desired temperature is reached by the start of the program period. If you select cooling mode the control algorithm and factory default program will be modified. This feature moves time automatically on the last Sunday of March and the last Sunday of October. If the thermostat is located in a particularly hot/cold location for reliable signal transmission reasons then the measured/displayed temperature can be adjusted by +/- 3°C. This is useful if the homeowner wants the reading to match another appliance temperature display. The normal upper temperature limit of 35°C can be reduced to 21°C to save the homeowner energy. The normal lower limit of 5°C can be increased up to 21°C to protect inhabitants from cold. Enable/Disable To enable: Set parameter 8: OP (category 1) to 1. Set parameter 7:LL (category 1) to the desired lower limit. Upper/Lower Temperature Limit CM900 Wireless - Programmable Room Thermostat 4. 5 Installer Parameters Table 4. 5. 1 Category 1 - Room Thermostat Settings Parameter Parameter No. [. . . ] 1 m distance between the receiver box and the room thermostat. After the binding procedure the red LED is on and the green one is flashing once every 3 sec on the receiver box. The red LED on the receiver box is illuminated (Communication loss) Incorrect or incomplete binding procedure. The receiver box receives no RF messages from the room thermostat: RF signal is blocked due to wrong location of the room thermostat. Room thermostat batteries are exhausted. Re-locate the room thermostat following instructions in section 2) Installing the CM900 Wireless System. [. . . ]