Have a look at the manual honeywell 3 way valve manual online for free. Installation instructions v4073a motorised midposition valve application the v4073a valve has been designed to control the flow of water in a small bore domestic central heating system where both radiator and hot water cylinder circulation are pumped. Replaces honeywell v4043 valve head synchronous motor driven spring return actuator suitable for tower valves 1m 5core flex. V4073a midposition y plan valve operation honeywell. Aug 10, 2018 reference guide, v4073a, v4073a motorised midposition diverter valve, specification answer solution describes the answer or the required steps that resolve the issue. The honeywell v4073a three port, mid position, spring return valve, is a masterpiece of clever engineering. Part 4 in the heating wiring series covers how the 3 port mid position valve works internally, allowing 3 separate positions from only 2 mains inputs. The honeywell motorised valve faults detailed above are likely to apply to most domestic honeywell valves. Honeywell v4073a pdf the va valve has been designed to control the flow of water in domestic central heating systems, where both radiator and hot water cylinder circuits are. Move the lever on the end of the valve to the other end of the slot. They can be used to replace the valve heads removable without draining the system and also valves which require draining the system. The result is that it keeps moving slightly back from the mid position causing the microswitch to apply full power to the motor to restore it to mid position, and so on. You can order online today at great prices and collect in your local branch or have it delivered to. The v4073a mid position diverter valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of a conventional, fully pumped central heating installation.
The white wire is only present on a mid position valve and is used as a hot water off signal from the stat to allow the heating to run seperately. The honeywell v4073a mid position valve is typically suited for small to medium sized installations. I put the old powerhead back on the valve and it works fine. Honeywell v4043h installation instructions pdf download. Angle of rotation the angle of rotation can be adjusted using the potentio. An actuator used together with an oversized mixing valve is a further application requiring a concave curve k 3. Honeywell motorised mid position diverter valve ke4024. It is typically suited for systems up to 90,000 btuh 26 kw. Well over 40 million homes across the country use gas as their source of heat. It may be plumbed in at any angle but the flow must go into port ab and must not be mounted so that the powerhead is below the horizontal level of the. Downloadable pdf document containing all the wiring diagrams.
Tried manually moving the lever to mid position but its stuck fast iv checked the voltage of the wiring and its got full power so its definatly not the motor think the valve has completely seized. Installation instructions v4073a motorised mid position valve application the v4073a valve has been designed to control the flow of water in a small bore domestic central heating system where both radiator and hot water cylinder circulation are pumped. Option 2 using figures 1 and 2 below determine the valve type and size. Number vc6834zz11 power supply 24 vac power cycle rate 5060 hz control 210 vdc 420 ma 500 ohm resistor floating 2position spdt 2position spst. This item will be sent through the global shipping programme and includes international tracking. Product description siemens drayton randall honeywell horstmann sunvic pegler myson potterton daily electromechanical programmer 10 or 16 way rwb2e 400 805 600 sm2 3020p 3060 4033 set3m h425 tiara h425 diadem mp2 tmp2 to replace a diverter valve with a mid position valve, replace old brown wire with grey and white together and make the orange. Also applies to acl drayton, iflo and british gas motorised valves.
Tower mid postion actuator head suits 3 port honeywell. If no resistance lever loose, the valve is stuck in hw or mid position. The honeywell v4073a 3 port mid position valve has been designed to control the flow of water in domestic central heating systems, where both radiator and hot water cylinder circuits are pumped. Model 434435437 pressure transducers are sensitive to deliver precise, reliable measurements every time. I had no problem with the fitting of the v4073a 1039u22 mid position honeywell valve and i have had no problem with the switching of the valve as it has maintained a constant temperature of 20c as this was the setting of the thermostat plus it switched. The v4073a midposition diverter valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of. Tighten compression nuts enough to make a watertight seal. The valve must be sited so that the head is not below the flow through the pipe. Before fitting the valve, read through the plumbing and wiring instructions. V4073a mid position y plan valve operation pipework schematic the valve must always be connected so that the flow of water goes into port ab and flows out through either ports a or b, or both a and b.
Care should be exercised when using the tools on the valve stem during tightening. Looking for a honeywell v4073a1039u expansion valve. You should feel some resistance opening against a spring. Care should be exercised when using tools on the valve stem during tightening fig. Much of what we describe also applies to acl drayton motorised valves like the drayton 2port za56792 22mm zone valve and the drayton 3port ma1679 22mm midposition valve. The honeywell v4073a mid position diverter valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of a conventional, fully pumped central heating installation. Honeywell reserves the right at any time and without notice to change any product, specification or any other information contained in this publication and. Honeywell motorised valves problems and fault finding. About 2 million new gas furnaces and approximately 150,000 gas boilers are sold in the u. The result is that it keeps moving slightly back from the midposition causing the microswitch to apply full power to the motor to restore it to midposition, and so on.
The drayton midposition valves are available in 22mm and 28mm. Central heating how the mid position y plan 3 port valve. It moves to the mid position and there is no hunting. It manages to move to one of three positions using only a cheap nonreversible ac motor, a spring, a couple of microswitches, a resistor and a diode, and act as a relay for the boiler into the bargain. St9400c, mid position valve, y plan, v4073a, s plan, st6400c, two channel programmer answer solution describes the answer or the required steps that resolve the issue. Honeywell v4073a 1088 28mm midposition valve motorised valves. The honeywell motorised valves we see most commonly in the uk are the honeywell v4043h zone valve honeywell 2 port valve and the honeywell v4073a midposition valve honeywell 3 port valve. Midposition actuator valve rests in the hot water only position. Honeywell 3 port mid position y plan valve and actuator spiceman12 janin forum. Plumbing v4073a motorised midposition valve application the v4073a valve has been designed to control the flow of water in a small bore domestic central heating system where. Honeywell vc series balanced 2position hydronic valves are used in domestic and small commercial heating and cooling applications to control the flow of hot.
Although specifically designed for small bore domestic central heating systems, the valve can be used in commercial and industrial applications. Application and selection guide interstate hvac controls. Cole, honeywell introduction gas is the most popular fuel for heating homes in america. Aug 03, 2019 honeywell v4073a pdf admin august 3, 2019 leave a comment the va valve has been designed to control the flow of water in domestic central heating systems, where both radiator and hot water cylinder circuits are. Aug 10, 2018 st9400c, mid position valve, y plan, v4073a, s plan, st6400c, two channel programmer answer solution describes the answer or the required steps that resolve the issue.
Depending on the valve body, use a pin or wrench to keep valve stem from turning. Feb 28, 2017 in this video, roger shows you how a motorized valve works and what you need to do to diagnose and repair a motorised valve and avoid buying a costly replacement. Make sure that the flow through the valve is in the direction indicated by the arrow stamped on the valve body. The va midposition diverter valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of a conventional. Part 4 in the heating wiring series covers how the 3 port mid position valve works internally, allowing 3 separate positions from only 2 mains. Manual override on power failure, auto reset conduit connection 12 in. All models feature snapon actuators and have industrystandard wiring and dimensions. Mid position valve 240v50hz 22mm compression fitting, valve 7 cv, 1 meter cable. A head which does not require the system to be drained is. Signals from room and cylinder thermostats enable the valves electronic circuitry to close either one of the outlet ports or to hold the. Installation instructions v4073a motorised midposition valve application the v4073a valve has been designed to control. Honeywell v4073a 1088 28mm midposition valve motorised. Need to change a 3 port mid position acl lifestyle valve. Special features changeover valve with scalable flow limitations covering all flow needs with only 3 valve versions in combination with modulating actuator option to close the valve in midposition.
Valves up to and including 2 diameter are screwed, above 2 diameter flanged. About 2 million new gas furnaces and approximately 150,000 gas boilers are. How to repair a motorised central heating valve youtube. Mid position valves applications the 40003916 replacement heads are for field replacement of heads in honeywell v4073 mid position valves. Honeywell motorised valves problems and faultfinding. Product description siemens drayton randall honeywell horstmann sunvic pegler myson potterton daily electromechanical programmer 10 or 16 way rwb2e 400 805 600 sm2 3020p 3060 4033 set3m h425 tiara h425 diadem mp2 tmp2 to replace a diverter valve with a midposition valve, replace old brown wire with grey and white together and make the orange. Honeywell v4073a midposition valve 3 port 22mm 12127.
Installation instructions v4073a motorised midposition valve. The honeywell v4073a three port, mid position, spring return valve, is a. Hw heating cylinder boiler flow b a ab mechanical operation. V4043h motorised zone valve installation instructions application the v4043h valve has been designed to control the flow of water in iron and copper pipe systems. Honeywell v4073a 1039 22mm 3 port midposition valve. Shop at mr central heating for the best prices on motorised valves, along with special offers and drayton 22mm motorised 3 port midposition valve.
St9400a st6400 st9400c st7100 home water pump system st9400 t4360 v4073 honeywell thermostat text. Its possible to download the document as pdf or print. V4073a motorised midposition diverter valve honeywell. Use new, properly reamed pipe, free from dents or corrosion.
Mount the valve directly in the tube or pipe after the coil. In this video, roger shows you how a motorized valve works and what you need to do to diagnose and repair a motorised valve and avoid buying a costly replacement. Option 1 log onto the honeywell valve sizing website. Plumbing v4073a motorised mid position valve application the v4073a valve has been designed to control the flow of water in a small bore domestic central heating system where. Lifestyle mid position valves allow the flow of water from the valve inlet to be directed to either of two outlets, or through both at the same time. Honeywell 3port midposition valve operation v4073a1039 and v4073a1088. V4073a midposition y plan valve operation pipework schematic the valve must always be connected so that the flow of water goes into port ab and flows out through either ports a or b, or both a and b. If, however, y 50% and k 5, then the actuator will stop at the mid position. I had no problem with the fitting of the v4073a 1039u22 mid position honeywell valve and i have had no problem with the switching of the valve as it has maintained a constant temperature of 20c as this was the setting of the thermostat plus it switched the hot water onoff as required by the programmer. The honeywell v4073a midposition diverter valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of.
Honeywell v4073a three port motorised valve for flow control applications in small bore domestic central heating systems, where both radiator and hot water circuits are pumped. Honeywell valve actuators, valve positioners, hazardous location position sensor, hazardous area limit switchs, media isolated pressure sensors. Much of what we describe also applies to acl drayton motorised valves like the drayton 2port za56792 22mm zone valve and the drayton 3port ma1679 22mm mid position valve. Midposition valve 240v50hz 22mm compression fitting, valve 7 cv, 1 meter cable. The v4073a valve has been designed to control the flow of water in a small bore domestic central heating. The valve will then reset and the indicator go to w. V4044c installation guide honeywell heating controls. Number vu443a1008 vu443a1024 vu443a1115 power supply 120 vac 208 vac 230 vac power cycle rate 60 hz 60 hz 50 60 hz control 2position spst aux switch 1 x spst built in stroke timing max 15 sec.
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