User manual HONEYWELL VC

[. . . ] Flow through the 2-way valve can be in either direction, so the ports are not designated. 3-way valves are suitable for both diverting water from AB to A or B, and from A or B to AB. VC actuator 2-way VC valve body 3-way VC valve body Design VC Series zone valves consist of: · 2-way or 3-way valve housing available with various connection ends · Spindle and cartridge assembly · Actuator with cable or MolexTM socket · Pipe fittings (most versions) Features · Rugged design · Control by a low or line voltage SPST or SPDT controller · Minimal actuator power consumption · Pressure differential up to 4 bar · Double insulated actuator · Quick connect electrical connections · Quick and easy replacement of moving parts · Actuator head installation does not require draining of the system · High flow rate capacity Materials · Valve housing made of bronze · Spindle made of stainless steel · Cartridge made of RytonTM (polyphenylene sulphide) and NorylTM (polyphenylene oxide) · O-ring seals made of EPDM rubber · Actuator cover made of NorylTM (94V-0) · Actuator base made of RytonTM (94V-0) Honeywell · All rights reserved EN0H-0327GE25 R0206 VC SERIES Specifications Medium Water or water-glycol mixture (max. 50% glycol content), quality to VDI 2035 8. . . 9. 5 1. . . 95°C (34. . . 203°F) 120°C (248°F) short duration peak max. 4 bar (58 psi) see chapter "Dimensions" below 2-way: flow can be in either direction. [. . . ] When power is restored, the valve will respond to controller demand. Fig. Fluid flow through 2-way VC valve EN0H-0327GE25 R0206 2 Honeywell · All rights reserved VC SERIES 3-way diverter valve With an SPDT (3-wire) actuator On a call for heat, the NO controller contacts close, the valve closes port B and opens port A. When port A is in the fully open position the cam closes limit switch SW1 and opens limit switch SW2. When the need for heat is satisfied the NC controller contacts close, energising the valve through SW1, causing port A to close. With an SPST (2-wire and common) actuator On a call for heat the controller contacts close, RLY1 is energized making the NO contacts in switch SW3, causing port B to close and port A to open. When port A reaches the fully open position the cam closes switch SW1 and opens switch SW2. RLY1 is de-energized making the NC contacts in SW3 and port A is driven closed through SW1 and the NC contacts of SW3. When port A is in the fully closed position the cam closes SW2 and opens SW1. For both types of actuator a power failure will leave the valve at the position it was in when interrupted. When power is restored, the valve will respond to controller demand. Fig. Fluid flow through 3-way VC valve Wiring Figures 3 and 4 show wiring connections for 2-way and 3-way valves. Port A open and closed denotes valve open and closed for 2-way, and AB-A open and AB-B open for 3-way valves respectively. A means for disconnection from the supply having a contact separation of at least 3 mm in all poles must be incorporated in the fixed wiring. On MolexTM connector models, actuator and auxiliary switch voltages must be the same to meet the approval requirement. For mixed voltages, the cable assembly version is recommended. Fig. Logic sequence diagram with 3-wire actuator for SPDT contoller Fig. Logic sequence diagram with 2-wire + common actuator for SPST contoller Honeywell · All rights reserved EN0H-0327GE25 R0206 VC SERIES Dimensions Fig. Dimensions and kvs-value Body C 15mm compression 22mm compression* 28mm compression* 1/2" BSPP (external) 3/4" BSPP 1" BSPP 1/2" sweat 3/4" sweat 1" sweat 98 112 112 98 94 94 98 94 94 2-way VC valve kvs-value 3. 4 6. 8 7. 7 3. 4 6. 8 7. 7 3. 4 6. 8 8. 6 C 98 Fig. 3-way VC valve 3-way VC valve D 136 140 140 136 130 136 136 132 136 kvs-value 4. 3 8. 6 8. 6 4. 3 7. 7 8. 6 4. 3 8. 6 8. 6 112 112 98 94 94 98 94 94 NOTE: All dimensions in mm * Includes compression nuts and olives Ordering Information Use the Valve Selection Chart to find the right version. The Valve Selection Chart provides the necessary information to put together the OS-No. Always "VC" Accessories and packing specifier ­ see Valve Selection Chart column E Customisation specifier ­ see Valve Selection Chart column D Cartridge specifier ­ see Valve Selection Chart column C Actuator specifier ­ see Valve Selection Chart column A Body specifier ­ see Valve Selection Chart column B EN0H-0327GE25 R0206 4 Honeywell · All rights reserved VC SERIES Valve Selection Chart Honeywell · All rights reserved EN0H-0327GE25 R0206 VC SERIES Installation WARNING Installer must be a trained, experienced service person. When installing this product: · Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. [. . . ] To remove, lift up on the latch mechanism located directly below the red manual open lever. Press the actuator head down towards the body with moderate hand force and turn counter-clockwise by 1/8 turn (45 degrees) simultaneously. NOTE: Actuator can also be installed at right angles to valve body but in this position latch mechanism is not engaged. Latch mechanism EN0H-0327GE25 R0206 6 Honeywell · All rights reserved VC SERIES Adjustment and Testing Manual Opener The manual opener can be manipulated when in the up position. [. . . ]