User manual HONEYWELL W7754Q

[. . . ] W7754K, P, Q FAN COIL UNIT CONTROLLERS HONEYWELL EXCEL 5000 OPEN SYSTEM INSTALLATION INSTRUCTIONS Excel 10 GENERAL INFORMATION LonWorks service LED LonWorks service button left DIP switch (USED = wall module connected) terminal assignment label right DIP switch (USED = terminal 11 enabled) W7754K1001 · 230 Vac power supply · one triac output · one digital output, for the low-voltage Pulse-Width Modulated (PWM) control of a solid-state relay employed in high-current electrical reheat applications · three relays W7754P1000 · 230 Vac power supply · four triac outputs · four relays W7754Q1008 · 24 Vac power supply · four triac outputs · four relays See also Table 1 on page 3 for a complete overview of terminals and their functions. UNUSED WALL MOD. USED ON UNUSED DI2 USED 0345 FAN DI2 W7754Kxxxx 230 Vac, 50/60 Hz max. 5 VA unloaded 10A 2A GND LED D-71101 Schönaich Made in Germany triac 0. 5 A +- 8 9 10 11 12 34567 DI1 SENS GND SET 12 RS1A 23D25 131415 16 17 18 III II fan I L N 1920 2122 2324 close open close open com com 2526 NL 230 V 2A/M LON 5342 1 T7460 / T7560 230 V OUT1 OUT2 230 Vac relays terminals for hardwiring to wall module and/or sensor(s) removable LonWorks terminal plug digital output for low-voltage PWM control of solid-state relay triacs fuse removable power supply terminal plug BEFORE INSTALLATION IMPORTANT It is recommended that the controller be kept at room temperature for at least 24 hours before applying power; this is to allow the evaporation of any condensation resulting from low shipping / storage temperatures. US requirement, only: This device must be installed in a UL-listed enclosure offering adequate space to maintain the segregation of line voltage field wiring and Class 2 field wiring. Fig. [. . . ] NOTE: The intended use of the wall module's buttons must be configured using Honeywell's LNS plug-in. Supported wall module functions Excel 10 W7754K, P Excel 10 W7754Q T7560 button T7460C T7460D T7460E T7460F T7560A left middle right left middle right override · unit ON/OFF fan speed · 230 Vac 25 230 Vac 26 24 Vac 25 24 Vac 26 · · · · · 230 Vac 25 230 Vac 26 24 Vac 25 24 Vac 26 24 Vac (+/-20%) · · · · 230 Vac 25 230 Vac 26 T7560B N L N L 230 Vac (15% / +10%) 50 / 60 Hz 230 Vac (15% / +10%) 50 / 60 Hz Fig. Connection to power supply NOTE: Do not reverse the polarity of the power connection cables, and avoid ground loops (i. e. avoid connecting one field device to several controllers) as this may result in short circuits damaging your device. Example: The T7560A has a left button which can be configured to act as a fan speed button, a middle button which can be configured to act as a unit ON/OFF button, and a right button for override. If the wall module's LED flashes twice per second, a network command has placed the controller into either the "standby" or the "occupied" mode. If the wall module's LED flashes four times per second, the controller is responding to a network management "wink" command. Different network configurations (daisy-chain, loop, and star configurations, or any combination thereof) are possible (see also Excel 50/500 LONWORKS Mechanisms Interface Description, EN0B-0270GE51). Connecting to the LONWORKS Network IMPORTANT Do not bundle wires carrying field device signals or LONWORKS communications together with highvoltage power supply or relay cables. separation of 3 inches (76 mm) between such cables. Local wiring codes may take precedence over this recommendation. IMPORTANT Try to avoid installing in areas of high electromagnetic noise (EMI). The unit must be wired to the LONWORKS network using level IV 22 AWG (Belden part number 9D220150) or plenum-rated level IV 22 AWG (Belden part number 9H2201504) nonshielded, twisted-pair, solid-conductor wire. When possible, use Honeywell AK3781, AK3782, AK3791, or AK3792 cable (US part numbers). See Excel 50/5000 LONWORKS Mechanisms, EN0B-0270GE51, for details, including maximum lengths. Use wire with a minimum size of 20 AWG (0. 5 mm2) and a maximum size of 14 AWG (2. 5 mm2). · · · Configuration of the LED to Display Info on Occupancy Mode The wall module's LED can also be configured to indicate the Excel 10 W7754 FCU Controller's effective occupancy mode. Specifically: · If the wall module's LED is OFF, the controller is in the "unoccupied" mode. · If the wall module's LED is ON, the controller is in the "occupied" mode. · If the wall module's LED flashes once per second, the controller is in the "standby" mode. · If the wall module's LED flashes four times per second, the controller is responding to a network management "wink" command. Configuration of the LCD to Display Info on Occupancy Mode The T7560 Wall Module's LCD can be configured to display various symbols to indicate the Excel 10 W7754 FCU Controller's effective occupancy mode. Specifically: · If is displayed continuously, the controller is in the "occupied" or "override" mode; if it flashes, the given mode has been overridden. · If is displayed continuously, the controller is in the "standby" mode; if it flashes, the "standby" mode has been overridden. · If is displayed continuously, the controller is in the "unoccupied" mode; if it flashes, the "unoccupied" mode has been overridden. [. . . ] Hardware Limits for Excel 10 W7754K, P (230 Vac Power Supply) · Low signal: 0 V; high signal: 230 Vac · Maximum allowable continuous current for each individual triac output: 500 mA · Maximum allowable peak current (for 10 seconds) for each individual triac output: 1 A · Maximum allowable continuous current for all of the triac outputs together: 1 A. · cos > 0. 8 Possible Problems and Recommended Actions Check if the LONWORKS service LED's behavior is changed if you switch the power OFF/ON. Please contact Honeywell if this does not solve the problem. EN1B-0304GE51 R0506C 6 EXCEL 10 W7754K, P, Q FAN COIL UNIT CONTROLLERS Accessories Table 5. LONWORKS Service LED Behaviors and Meanings LED blinking pattern meaning Defective device hardware. [. . . ]