Honeywell VU443A User's Manual
Contents
1. CTION AS REQUIRED CONNECT BLACK LEADWIRE TO THERMOSTAT iaoiss Fig 5 T822 Thermostat VU80 series actuator hookup OPERATION CAUTION On 24V systems never jumper the valve coil terminals even temporarily This can burn out the heat anticipator in the thermostat AUTOMATIC OPERATION On a call for heat or cool by the fan coil thermostat the valve motor operates opening the valve When the call ends the valve closes by integral spring return 95C 10883 03 VU443A VU444A VU843A VU844A FAN COIL VALVE ACTUATORS MANUAL OPERATION The 2 way normally closed and 3 way motorized valve actuators can be opened manually by lifting the manual opening lever over the stop and pushing slowly and firmly to the MAN OPEN position The stop permits the valve to be locked in the open position The valve returns to automatic position when it is energized NORMALLY CLOSED With the manual opener set to AUTO and the actuator energized the A port is opened as shown in Fig 6A and 7A When the actuator is de energized a spring return mechanism drives the valve to the port A closed position as shown in Fig 6B and 7B The valve can also be opened with no electrical power by moving the manual opening lever over the stop and pushing slowly and firmly to the MAN OPEN position The stop permits the valve to be locked in an open position The valve returns to the automatic position when the valve is energized NORMALLY OPEN With the ma2. Honeywell VU443A VU444A VU843A VU844A Fan Coil Valve Actuators The VU443 VU444 VU843 and VU844 Fan Coil Valve Actuators are used in conjunction with the VU52 VU53 and VU54 fan coil valves for controlling the flow of hot or chilled water These valves are humidity resistant and are suitable for use in condensing non corrosive environments SPECIFICATIONS Actuator Electrical Rating amp Connections 10 VA maxi mum Control Current End Connection Model Circuit Draw A Switch Leads Application VU443A None 2 way normally foe open use VU443E SPST 6 motor VU444 120V 0 07 leads VU844 60Hz standard VU444A None 2 way normally VSA closed use 36 VU443 24V 0 32 None gee 30 or 0843 VU844A 50 60Hz Leadwires aay ivei optional use VU444 VU844 Note Motors for all the above models are Class A Plated PRODUCT DATA End Switch Rating 2 2 A inductive from 5 to 110 Vac 1 0 A inductive above 110 Vac to 277 Vac Min DC switching capability 5 mA 24 Vdc Maximum Ambient Fluid Temperature Rating Standard models with class A motor 125 F 52 C ambient 200 F 93 C fluid Minimum Ambient Temperature 34 F 1 C Shipping and Storage Temperature 40 F to 150 F 40 C to 65 C Atmosphere Non corrosive non explosive condensing Noise Rating Low noise non obtrusive Materials Case stainless steel Co
3. NG SHAFT Fig 2 Installing new actuator REMOVING ACTUATOR FROM THE VU SERIES VALVE BODY ASSEMBLY SEE FIG 3 NOTE It is not necessary to drain the system if the valve body assembly remains in the pipeline 1 Switch power supplies OFF Disconnect electrical leads carefully noting the position and colour of each lead 2 Place the manual operating lever in the MAN OPEN position 3 Remove actuator by depressing locking button and lift ing straight up 1 PLACE MANUAL LEVER IN OPEN POSITION 2 DEPRESS LOCKING BUTTON 3 LIFTACTUATOR STRAIGHT UP M32207 Fig 3 Removing actuator from valve body WIRING Disconnect the power supply before connecting wiring to prevent electrical shock or equipment damage All wiring must comply with local codes and ordinances TO ATTACH FLEXIBLE CONDUIT Strip cable jacket Fit conduit strain relief onto cable Slide strain relief nut over wires Connect cable and actuator wires Slide cable wires down through slot in the wiring hole so that the strain relief nut is inside the actuator hous ing Secure nut onto strain relief Install actuator cover ga Pons NA FAN COIL THERMOSTAT TYPICALY T4039 T6380 TB6570 ELECTRONICS M32082B Fig 4 Typical wiring for VU40 series actuator T822 T822 O O OO A A O O O O VU VALVE VU VALVE uu HOT L2 A O O VU VALVE A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTE
4. nual opener set to AUTO and the actuator energized the A port is closed as shown in Fig 6B NOTE Inlet and Outlet Ports are indicated by a flow direc tion arrow on the valve body CLOSED POSITION UNPOWERED Fig 6b OPEN POSITION POWERED Fig 6a M32202 Fig 6 Actuator operation for normally closed 2 way valve A B A B gt gt IN OUT AB IN AB IN FLOW THROUGH SERVICE PORT FLOW THROUGH BYPASS PORT POWERED UNPOWERED M32205 Fig 7a Fig 7b Fig 7 Actuator operation for normally closed 3 way valve Automation and Control Solutions Honeywell International Inc 1985 Douglas Drive North Golden Valley MN 55422 customer honeywell com CHECKOUT SET TO HEATING MODE 1 Raise the setpoint on the zone thermostat above the room temperature to initiate a call for heat 2 Observe all control devices the valve should open 3 Lower the setpoint on the zone thermostat below the room temperature 4 Observe the control devices The valve should close and the auxiliary equipment should stop SET TO COOLING MODE 1 Lower the setpoint on the zone thermostat below the room temperature to initiate a call for cooling 2 Observe all control devices the valve should open 3 Raise the setpoint on the zone thermostat above the room temperature 4 Observe the control devices The valve should close SERVICE This valve should be serviced by a trained experienced service technician 1 If
5. the valve is leaking drain the system and check to see if the O ring needs replacing 2 Ifthe gear train is damaged replace the entire actuator See the Installation section If the motor is burned out replace the motor 3 Wear safety glasses to protect eyes from injury when removing or installing the large spring clip that holds the actuator plate to the valve body Use proper snap ring pliers to remove or install spring clip NOTE Honeywell fan coil valves are designed and tested for silent operation in properly designed and installed systems however water noises can occur as a result of excessive water velocity or piping noises can occur in high temperature higher than 212 F 100 C systems with insufficient water pressure Valves are designed for normal cycling operations Product life will be shortened if energized continu ously or if operated above rated temperatures Use VU443 843 actuators ONLY with VU53 2 way normally close valve bodies Water hammer may result and actuator life will be shortened if used on VU54 3 way body Use VU444 844 actuators on either VU52 2 way normally open bodies or VU54 3 way diverting valve bodies Close off pressure ratings will be reduced when used with VU53 Honeywell U S Registered Trademark 2010 Honeywell International Inc 95C 10883 03 T D Rev 09 10 Printed in U S A
6. trical shock of equipment dam age 2 On 24V systems never jumper the valve coil ter minals even temporarily This can burn out the heat anticipator in the thermostat 95C 10883 03 2 To Install and Remove Actuator INSTALLING ACTUATOR ON VU SERIES VALVE BODY ASSEMBLY 1 Orient slot in shaft of VU series valve body toward notch in side of body i e 90 to water flow See Fig 2 This lifts the ball off seat prevents damage to the ball seal while soldering and makes actuator attach ment easier Install valve body into pipe Wiring connections may be made either before or after the actuator is installed on the valve body Place manual operating lever on the actuator in the MAN OPEN position Line up motor coupling to slot in shaft of body and fit the head onto the valve body ensuring that the shaft seats correctly See Fig 2 Snap actuator onto body by pressing down Make wiring connections Refer to wiring section for proper instructions Inspect the actuator installation and the valve body to ensure that all connections and adjustments have been correctly made Adjust the thermostat or controller connected to the valve so that the valve runs through its cycle Make sure the valve runs smoothly and positively from closed to open to closed again VU443A VU444A VU843A VU844A FAN COIL VALVE ACTUATORS ACTUATOR COUPLING ENSURE SHAFT SLOT POINTS TOWARDS NOTCH ON SIDE OF BODY FOR FITTING INTO ENGAGI
7. ver aluminum Sector gear reinforced with KEVLAR brand fiber KEVLAR is a Dupont registered trademark Approvals CSA C US Certified Dimensions See Fig 1 95C 10883 03 VU443A VU444A VU843A VU844A FAN COIL VALVE ACTUATORS a 1 3 4 lt t 1 3 4 44 44 10 VU ACTUATOR he 4 3 4 le 1 3 4 44 44 3 8 10 ES 7 8 23 2 WAY B 3 WAY t VU53 AND VU54 VALVE DIMENSIONS WITH ACTUATOR VALVE BODY SIZE A B 1 2 IN SWEAT 1 5 6 33 1 5 6 33 3 4 IN SWEAT 1 3 8 35 1 11 16 43 1 IN SWEAT 1 11 16 43 1 11 16 43 M32203 7 8 DIA 22 3 3 4 A 133 1 1 2 38 15 32 12 VU52 OR VU53 VALVE WITH ACTUATOR A HEIGHT NEEDED TO REMOVE ACTUATOR OR COVER A OPENING FOR 1 2 IN CONDUIT ON OPPOSITE SITE OF MANUAL LEVER FOR ALL MODELS M32204 Fig 1 Mounting Dimensions in inches mm INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow them could damage the product or cause a hazardous condi tion 2 Check the ratings given in the instructions and on the product to make sure the product is suitable for your application 3 Installer must be a trained experienced service techni cian 4 After installation is complete check out product opera tion as provided in these instructions CAUTION 1 Disconnect power supply before connecting wir ing to prevent elec
Download Pdf Manuals
Related Search