Honeywell Thermostat T100 User Manual - Honeywell Thermostat Manual Download


Sunday, April 5, 2020

Honeywell Thermostat T100 User Manual

MV100 Electric Controllers T100, T200 Thermostatic Controllers and V2000 Radiator Valves PRODUCT DATA APPLICATION THERMOSTATIC CONTROLS The MV100, T100, T200 Controllers, when paired with V2000 Radiator Valves, provide automatic temperature control by modulating the flow of steam or hot water through free- standing radiators, convectors, and other heating units. They T100 T100M provide comfort and energy savings at affordable prices. FEATURES • Continually monitors and adjusts room temperature T100C for consistent comfort and relief from underheating T100F and overheating. • T100,T200 Controllers include sensor, setpoint dial T200 and valve actuator; components can be integral or T100B connected by capillary tubing. • T100,T200 Controllers require no electrical connections. • T100A,F,M models have range limiting features to limit adjustment or lock at a fixed setting (can require limit MV100 pin accessory). • EPDM valve seat disk assures tight shutoff on steam and hot water systems. VALVE BODIES • Nickel-plated bronze cast valve body. • Cartridge containing all working parts inserts into valve body for ease of service. V2043H • Cartridges are replaceable while valves remain in service and under pressurE (WITH accessory service tool MT100C). • Valves remain normally open with no control mounted. • Valves can be used with T100, T200 Thermostatic or MV100 Electric Controllers. Contents V2040A Application ........................................................................ 1 V2040D Features ........................................................................... 1 Specifications ................................................................... 2 Ordering Information ........................................................ 2 Installation ........................................................................ 5 Wiring (MV100 only) ......................................................... 9 Operation .......................................................................... 9 Settings and Adjustments ................................................. 9 V2040E V200LD Single-Pipe Steam Applications ....................................... 10 Troubleshooting ................................................................ 12 Pressurized Valve Cartridge Replacement ....................... 13 62-3048—2 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES SPECIFICATIONS MV100 Electric Controller Materials: Body: Industrial grade plastic with low thermal conductivity. Fastening Ring: Plated brass. Dimensions: See Fig. 1. Internal Parts: Brass thermostat capsule, other metals. Thermal Element: Materials: T100A,M: Wax. Body: Industrial grade plastics with low thermal conductivity. T200,T100B,C,F: Liquid Ethyl Acetate (non-toxic, Fastening Ring: Plated brass. flammable). Internal Parts: Brass thermostat capsule, other metals. Thermal element: Wax-filled brass capsule. Temperature Ratings: Range: 43°F to 79°F (6°C to 26°C). Electrical Ratings: Maximum: 125¼F (52¼C). Control Type: Spst switch. Controller: Voltage: 24 Vac, 60 Hz, or 24 Vdc. V2000 Valves Power Consumption: 0.125A, 3W. End Switch: Low-voltage (24 Vac, 5A), two-position, spst, Models: See Table 2. normally open switch (closes when controller powered). Dimensions: See Fig. 2 and 3. Configuration (with Controller Mounted): Normally closed (valve remains closed without power). Materials: Body: Bronze. NOTE: Normally open model available in Canada. V2040A (1/2 in.): Brass. Union: Brass. Opening Time (at 78°F): Maximum: 5 minutes from cold to Stem Seal: Double EPDM seal. fully open. Cartridge: Brass and stainless steel with EPDM seat disk. Ambient Temperature Rating: Maximum: 122°F (50°C). NOTE: Apply 25 ft.-lb. (30 N•m) torque when installing the valve cartridge. T100,T200 Thermostatic Controllers Maximum Temperature Rating: 266°F (130°C). Models: See Table 1. Maximum Pressure Ratings: System: Dimensions: See Fig. 1. Water: 145 psi (10 bar). Steam: 15 psi (103 kPa). Power: Self-powered, no electrical connections. Differential: With MV100 Controller: 36 psi (248 kPa). Components: Sensor, setpoint dial and valve actuator. With T100 or T200 Controller: 14.5 psi (1 bar). For Low Noise: 2.9 psi (20 kPa). Sizes: V2024H: 1/8 in. V200LD: 1/2 in., 3/4 in. V2040D,E,A: 1/2 in., 3/4 in., and 1 in. ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE® Catalog or price sheets for complete ordering number. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: 1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory). 2. Honeywell Customer Care 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. 62-3048—2 2 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES T100A TOP T100M TOP 2 (50) 2 (50) T100C 1 (25) 2-1/8 (54) CAPILLARY TUBE LENGTH 2-1/8 (54) 4-1/2 FT (1.4 m) 1-13/16 2-5/32 (46) (55) 3 (77) 3-5/16 (84) 2-31/32 (75) MAX. CAPILLARY TUBE LENGTH 4-1/2 FT (1.4 m) M12927 M12925A M12929 T100B T100F 2-1/8 (54) CAPILLARY TUBE LENGTH 2-1/8 (54) 2 (50) 6-1/2 FT (2m) OR 16 FT. (5m) CAPILLARY TUBE LENGTH 6-1/2 FT (2 m) 1-13/16 2-5/32 (46) 3-5/16 (55) (84) MAX. 2-31/32 (75) M12928 M12926 T200A TOP MV100 2 (51) 1-9/16 Braukmann xxxxxxxx H (40) xxxxx 2-7/8 13/16 (20) (74) M3187A 3 (76) MAX M12945 Fig. 1. MV100, T100 and T200 dimensions in in. (mm). 3 62-3048—2 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES Table 1. T100,T200 Models. Model Control Range Mounting Capillary Description T100A 43°F to 79°F Directa None Components are in one unit. (6°C to 26°C) T100B 48°F to 79°F Remote One 6-1/2 ft (2 m) Sensor and setpoint dial combined and remote from valve (9°C to 26°C) or 16 ft (5 m) actuator. T100C Remote Two 4-1/2 ft Components mount remotely from each other. (1.4 m) T100F 43°F to 79°F Direct with One 6-1/2 ft (2 m) Sensor is remote from combination setpoint dial and valve (6°C to 26°C) remote actuator. sensor. T100M Directa None Components are in one tamper-resistant unit. T200A Directa None White body with chrome-plated end. a Mount the unit horizontally on the valve body for accurate temperature regulation. Table 2. V2000 Models. Connection Model Body Pattern Inlet Outlet Application V2040D Straight NPT Union Nut with Use where manual valves were not originally installed. V2040E AngleThreaded NPT Threaded Typically used with remote temperature sensing controllers. or Sweat V2040A Horizontal Angle Typically used with direct-mount controllers (T100A,M; T200A) V200LD Straight Sweat Sweat Use with copper tubing installations. V2042H/ One-Pipe 18 in. NPT 1/8 in NPT for Use in single-pipe steam applications. V2043H SA123A Vent V2040D (Straight Body) V2040E (Angle Body) B MAX. B MAX. C A M12930B V2040A (Horizontal Angle Body) A M12931B V200LD (Straight Body) C B MAX. B MAX. A M12932B M12933B A Fig. 2. V2000 dimensions. NOTE: Refer to Table 3 for detailed valve dimensions for each valve size. 62-3048—2 4 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES Table 3. Valve Dimensions. Size in A B Maxa C Valve in. in in. (mm) in in. (mm) in in. (mm) V2040D 1/2 3-3/4 (95) 4-1/16 (104) — 3/4 4-3/16 (106) 4-1/16 (104) — 1 4-1/2 (114) 4-1/2 (114) — V2040E 1/2 2-5/16 (58) 3-3/16 (98) 1 (26) 3/4 2-5/8 (66) 3-13/16 (98) 1-1/8 (29) B MAX. A 1 2-15/16 (74) 4-5/16 (110) 1-5/16 (34) V2040A 1/2 2-1/8 (54) 4-1/2 (115) 1-1/8 (28) C 5 3/4 2-1/2 (64) 5-3/16 (132) 1-3/16 (31) 6 1 2-15/16 (74) 5-3/16 (132) 1-7/16 (37) 0 V200LD 1/2 2-5/8 (66) 4-1/16 (104) — M17016 3/4 2-15/16 (74) 4-1/16 (104) — Fig. 3. V2042H (Body)/V2043H (Body with Airstream Vent) V2042H 3/8 1-11/16 (43) 3-13/16 (98) 1-3/16 (31) Dimensions. a B Max dimension is with T100A control installed, except for NOTE: Refer to Table 3 for detailed valve dimensions for the V2042H, for which it is without the steam/air vent each valve size. installed. Connections: Inlets Available: INSTALLATION Internally threaded. Sweat (1/2 in. and 3/4 in. only). Outlets Available: When Installing this Product... Union nut with threaded tailpiece. 1. Read these instructions carefully. Failure to follow them Sweat (1/2 in. and 3/4 in. only). could damage the product or cause a hazardous Union nut with sweat tailpiece (1/2 in. and 3/4 in. only). condition. 2. Check the ratings given in the instructions and on the Capacity: product to make sure the product is suitable for your Cv (gpm at 1 psi drop across fully-open valve): application. 1/2 in.: 2.0. 3. Installer must be a trained, experienced service 3/4 in.: 2.2. technician. 1 in.: 2.3. 4. After installation is complete, check out product Btuh (Btu/hr at 7 psi drop across fully-open valve): operation as provided in these instructions. 1/2 in.: 59,100. 3/4 in.: 63,800. 1 in.: 70,500. CAUTION Accessories: Equipment Damage Hazard. 203225 Replacement Bulb Guard for T100F. Excessive force can distort and damage valve. 272844 Locking Cap and Limit Pins for T100M. Do not overtighten the union nut. 272873 MT100C Cartridge Tool Driver Upgrade Kit. A104F Limit Pins for T100A,F. VS1200SL01 Replacement Valve Cartridge. CAUTION G111B Bulb Guard to protect T100C sensor when Equipment Damage Hazard. wall-mounted. Driving an unmounted MV100 can damage the VA8200A001 Valve Cartridge Replacement Tool for system actuator beyond repair. under pressure (V2000). Mount the MV100 before applying power to the Q110D Inlet Strainer Inserts for NPT V100 (models available actuator. for 1/2 in. and 3/4 in. valves). SA123A Steam/Air Vent for V2042HSL10 One-pipe Steam Valve. CAUTION Sweat Valve Damage Hazard. Soldering the valve with the cartridge or controller attached can damage the device. Prior to attaching valve to piping, remove controller and cartridge from potential exposure to heat. IMPORTANT When installing the valve body, ensure that the arrow (cast into the body) points in the direction of the flow. 5 62-3048—2 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES Pre-setting and Balancing Flow Through One complete revolution of the black pre-setting ring equals a pre-setting of 10 (Fig. 7). Valve Body. Close valve with straight blade screwdriver by turning black pre-setting ring clockwise. M22690 Fig. 7. One complete revolution equals a pre-setting of 10. Table 4. CV Values. Pre- M22687 setting 1 2 3 4 5 6 7 Open Fig. 4. Closing valve. 3/8 in. 0.29 0.58 0.87 1.16 1.45 1.68 1.80 2.00 1/2 in. 2.15 When closed, the position of the screwdriver slot equals pre- setting zero. Mark the position of the slot with a felt tip pen. 3/4 in., 2.26 1 in. NOTE: Pressure drop (psi) = (flow[gpm]/cv)2. Product Selection 1. Select the installation diagram (from Fig. 4 through 16) that most accurately represents your equipment and pip- ing configuration. 2. Use Table 4 to select the combination of controller and valve that is most suitable based on: M22688 a. Equipment and pipe configuration, see Tables 1 and 2. b. Flow capacity requirement, see Specifications Fig. 5. Mark zero position of screwdriver slot. section. Take required value from Table 4. Turn presetting ring IMPORTANT counterclockwise with a straight blade screwdriver to this The T100 and T200 are modulating, not manual shut- position. down, valve actuators. Do not use them for hand shutoff valves. Chose value has to be congruent with marking. M22689 Fig. 6. Set pre-setting ring to correct value. 62-3048—2 6 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES Typical Applications Table 5. Figure References to Typical Applications. Application Figure No. Controller Valve 8 T100A, T100M, T200, MV100 V2040D 9 T100A, T100M, T200, MV100 V2040A 10 T100A, T100M, T200, MV100 V2040E 11 T100A, T100M, T200, MV100 V2042H M12934 12 T100M, MV100 V2040A 13 T100F, MV100 V2040E Fig. 10. 14 T100F, MV100 V200LD 15 T100F, MV100 V2040D 16 T100F, MV100 V2042H 17 T100B, MV100 V2040D 18 T100B, MV100 V2040E 19 T100C, MV100 V2040D 20 T100C, MV100 V200LD 4 5 0 M3236 Fig. 11. One-pipe steam system. M4631 Fig. 8. M12935 Fig. 12. M4632 Fig. 9. M4635 Fig. 13. 7 62-3048—2 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES M4640 M3190 Fig. 14. Fig. 18. M4638 M12936A Fig. 15. Fig. 19. SA123A V2042H T100A M12939 Fig. 20. M11752A Location and Mounting Fig. 16. Because these controls are thermostats that have sensors that measure air temperature in the immediate vicinity, it is critical to select an appropriate installation location. These devices are adversely affected by radiant heat, solar heat or airflow obstructions such as curtains or enclosures. Two essential considerations for choosing the correct controller/valve body combination for a particular installation are: — Adequate dimensional clearances. — Proper sensor positioning. M12937 IMPORTANT Install built-in sensor type controllers in a horizontal Fig. 17. position to prevent air warmed by the hot valve body from influencing the sensor. NOTE: The most common misapplication of these valves and controllers is the use of a horizontal-body valve (V2040E) with a direct-mount controller (T100A,M or T200A). See Fig. 17. 62-3048—2 8 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES MV100 END SWITCH RED TO CIRCULATOR RED PUMP MULTIZONE 2 PANEL OR BURNER RELAY PTC YELLOW L1 RESISTANCE (HOT) YELLOW HEATER L2 3 T810/T822 1 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD CORRECT PROTECTION AS REQUIRED. M16272A 2 NORMALLY OPEN END SWITCH CLOSES WHEN MV100 IS POWERED. INCORRECT 3 SUGGESTED HEAT ANTICIPATOR SETTING IS 0.35A. M12947A Fig. 21. Horizontal-body V2000 application. Fig. 22. MV100 internal schematic and wiring connections. Install controllers with external sensors in any position. The sensor can easily be mounted in a position to measure and control the room air temperature. OPERATION NOTE: When temperature of medium exceeds 190°F (88°C), The T100 and MV100 Controllers contain temperature- mount the MV100 horizontally. sensitive capsules that expand or contract in reaction to temperature changes. WIRING (MV100 ONLY) — When the capsule expands, pressure from the expand- ing material closes the valve, preventing flow through Wire the MV100 according to Fig. 18. the radiation unit. — When the capsule contracts, the valve opens and flow resumes through the radiation unit. CAUTION Equipment Damage Hazard. T100 Can short equipment circuitry. The T100 temperature-sensitive capsule expands when the Disconnect all power supplies before installation. temperature rises above the setpoint. MV100 CAUTION When signalled by the thermostat, an electric element in the Equipment Damage Hazard. MV100 heats the capsule causing it to expand. Connecting improper voltage can damage the device beyond repair. NOTE: For normally open MV100 models, the capsule cools Connect only 24 Vac or 24 Vdc to the MV100. when signalled by the thermostat. SETTINGS AND ADJUSTMENTS When installation is complete, rotate the setpoint dial to the desired setting. NOTE: The setpoint varies with the location of the sensor. A floor level sensor controls at a setpoint different from the wall level sensor. Normally, correction of an overheating or underheating condition requires only small changes. See Table 5 for dial markings and corresponding temperature settings. After changing the setting, allow the valve at least 30 minutes to stabilize. 9 62-3048—2 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES Table 6. T100 and T200 Settings and Corresponding Temperatures in °F (°C). 0*123456 T100A,F 32 (0) 43 (6) 46 (8) 54 (12) 61 (16) 68 (20) 73 (23) 79 (26) T100B,C — 55 (13) 61 (16) 64 (18) 68 (20) 72 (22) 75 (24) 79 (26)a T100M — 43 (6) 61 (16) 64 (18) 68 (20) 72 (22) 75 (24)a 79 (26)a T200 — 43 (6) 52 (11) 57 (14) 63 (17) 68 (20) 73 (23) 79 (26) a Setting not marked on dial. NOTE: Torque cartridge to 25 ft-lb. Setpoint Locking or Limiting SINGLE-PIPE STEAM APPLICATIONS (T100A,F,M only) A single temperature or range-limiting lock is available for the Many older buildings original heating systems were T100A,F,M. See Accessories in the Specifications section. single-pipe steam. The advantage of single-pipe steam Refer to the T100A,F,M Installation Instructions for procedural systems is lower initial cost, resulting from the use of less details. piping and elimination of radiator steam traps. Cartridge Replacement With the appropriate tools, the V2000 cartridge can be CAUTION replaced while under pressure. Boiler Flooding Hazard. Loss of system control and boiler damage can result. For a one-pipe steam system radiator, install valve only WARNING at the vent location. Severe Scalding Hazard. Contact with hot liquid can lead to severe injury IMPORTANT or cause death. Ensure vacuum breakers are installed on the steam For a pressurized valve, only open with Valve Cartridge system risers. If vacuum breakers (that open to the Replacement Tool. atmosphere at zero psig) are not installed, the system can develop a negative pressure and pull steam back into the radiators on resumption of steam. CAUTION Refer to Fig. 12 for installing the one-pipe steam radiator Hot Surface Hazard. adapter assembly. Contact with hot valve body can cause severe burning. Service cartridge only when valve body is cool. Single-Pipe Steam Systems T100/V2043H (with vent) operation to provide temperature control for a formerly uncontrolled single-pipe steam system CAUTION follows: Hazardous Splashing Fluids. Can injure, burn, or blind. 1. The boiler is off (zero steam pressure); radiators are Wear safety glasses or goggles. filled with air; the vent is open. 2. The T100 calls for heat, opening the valve. 3. At the command of an external controller (such as a Under Pressure representative zone thermostat, or a timer controlled by Replacing the V100 Cartridge with the system under pressure outside temperature) the boiler cycles on and begins requires the Valve Cartridge Replacement Tool (see delivering steam to the system. Accessories in the Specifications section). See Pressurized 4. Steam enters the radiator, forcing air through the open Valve Cartridge Replacement section for details. V2042H and out through the vent. 5. Once the air is exhausted, the steam heats the Not Under Pressure thermostatic element of the vent, causing it to close. 6. The steam cools forming condensation. Condensation Replacing the cartridge without the Valve Cartridge flows out of the radiator making room for more steam to Replacement Tool requires one of the following: enter. 7. The T100 is eventually satisfied (temperature equals the • Isolation of valve from system pressure. setpoint) and it closes the V2042H. • System shutdown and drain to valve level. 8. The air in the system (introduced by the vacuum Once the valve is not pressurized: breakers) begins to fill the radiator. The air in the radiator prevents steam from coming in and the radiator cools. 1. Using a 3/4 in. (19 mm) hex (6- or 12-point) socket 9. The boiler cycles off by command of components wrench, remove and discard the cartridge. external to the T100/V2042H and the steam pressure 2. Clean the inside of valve and cartridge sealing surfaces. returns to zero. Install a new cartridge. 62-3048—2 10 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES NOTE: NOTE: Install the valve on the boiler side of the condensation takeoff to ensure that the condensation can return to — While the T100 is satisfied, the V2042H is closed the boiler. and the radiator remains airlocked. Thus, no steam can enter the radiator. The airlocked 3. Verify that the steam pressure has returned to zero. condition remains until the T100 calls for heat, at which point the system operates as described in Verification steps 1 through 6. — An improperly cycled boiler causes either Verification is necessary to prove that the pressure has excessive heating or lack of heat, depending on returned to zero. Simply turning off the boiler or shutting off the the system time constant. steam supply does not ensure zero steam pressure. The simplest way to check for zero pressure follows: Bringing the Steam Pressure to Zero psig 1. Install a strap-on Aquastat® Controller, such as the To assure the proper operation of any single-pipe steam Honeywell L6006C Aquastat® Controller, on the system, ensure that the steam pressure is brought to zero at condensation return line (see Fig. 19). some time during the off-cycle. One suggested procedure 2. Set the Aquastat® Controller at about 150°F (66°C). follows: With the return line at or below this temperature, the water is all condensation, and the pressure is 1. Determine if steam is required using one of two functionally zero. methods: 3. Wire the Aquastat Controller into the interrupting circuit a. A thermostat in a representative zone controls the to ensure that steam flow cannot resume until the valve or cycles the boiler. condensation line is below the setpoint. The 150°F b. A timing device cycles the boiler for varying lengths (66¡C) setpoint serves as a nominal starting point and of time in response to outdoor temperature. can require adjustment for individual steam systems. IMPORTANT MASTER ZONE When cycling the boiler from a space thermostat in a THERMOSTAT L6006C zone, do not apply a radiator valve to that radiator. 1 L1 (HOT) 24 Vac 2. Turn off the steam and allow system pressure to drop to L2 zero. Do this using one of two methods: LOW VOLTAGE a. Turn the boiler off and allow the total steam pressure RELAY in the system to drop to zero. PRIMARY IMPORTANT CONTROL Before applying controls to turn a boiler on and off, 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND check the manufacturer recommendations. OVERLOAD PROTECTION AS REQUIRED. M7536A b. In installations where turning the boiler off at the end Fig. 23. Holding circuit for use with L6006 when of each cycle is undesirable, install a control valve verifying zero psig steam pressure. (such as a Honeywell V5011 Valve) on the boiler dis- charge line. 11 62-3048—2 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES TROUBLESHOOTING Refer to Table 6 for troubleshooting details. Table 7. T100/V2000 Troubleshooting. Symptom Possible Cause Solution Not all sections of the Many radiators are oversized and System is operating properly. radiator are heating. not all sections heat to maintain the desired temperature. Underheating Sensor in the wrong location. Change the sensor location or change the control type. See Installation Instructions. T100A,M Controller mounted in a Mount the T100A,M horizontally, or switch controller to a T100F. vertical position above the hot pipe. Excess capillary tubing coiled Coil excess capillary tubing below or away from the heat source. above or too close to the heat source. Flow through the valve is in the Check the arrow on the valve body. It should be in the direction of wrong direction. the flow. Change the valve direction or flow direction. Inadequate system temperature or Check boiler operating and limiting controls, circulating pump, and pressure. isolating valves. Defective steam traps. Repair or replace the traps. Airlock in the hot water system. Fully open the valve to allow air to pass. Install vents. Scale or debris blocks flow. Flush the system. Do not use oil-based additives. Clean strainer insert in steam applications. Heating cabinet dampers are Open or remove the dampers. closed. Single-pipe: Blocked vent. Remove and inspect vent. Replace if necessary. Overheating Sensor in the wrong location. Change sensor location or change control type. Control not properly installed. Check for bosses and grooves, reset actuator on valve and tighten knurled ring to valve body. Capillary tube broken, kinked or Replace control. bent sharply. Dirt or scale under the seat Remove the control from the valve body, allowing valve to open prevents tight shutoff. fully and flush away scale and debris. Reinstall control. Turn fully clockwise. If the valve does not close fully, remove the control and cartridge (see Cartridge Replacement section). Always use a strainer insert in steam applications. Flow through the valve is in the Check the arrow on the valve body. It should correspond to the flow wrong direction, damaging the direction. Change the valve direction or flow direction. Remove valve seat. valve cartridge and inspect seat disk for damage. Defective steam traps. Repair or replace traps. Excessive differential pressure Install differential pressure regulator (D146A) to maintain less than forces the valve open (hot water 15 psi (103 kPa) differential between the supply and return pipes. systems). Single-pipe: Insufficient air in Check boiler cycling and system vacuum breakers. Repair or system. replace breakers as necessary. Chattering or knocking. Flow through the valve in the Check the arrow on the valve body. It should correspond to the flow wrong direction. direction. Change the valve direction or flow direction. Vacuum in the system. Steam—check traps and vents. Hot water—check expansion tank operation and location. Excessive differential pressure. Install differential pressure regulator (D146A) to maintain less than 15 psi (103 kPa) differential between the supply and return pipes. Bent piping. Ensure adequate space for piping. 62-3048—2 12 MV100 ELECTRIC CONTROLLERS T100, T200 THERMOSTATIC CONTROLLERS AND V2000 RADIATOR VALVES PRESSURIZED VALVE CARTRIDGE REPLACEMENT B The VA8200A001 Valve Cartridge Changing Tool enables the user to remove, and clean or replace the valve cartridge while the valve remains pressurized. Boiler shutdown is not required. D A WARNING Severe Scalding Hazard. Contact with hot liquid can lead to severe injury or cause death. C M16273 Exercise extreme caution when working with hot liquid. Fig. 25. Attaching VA8200A001 to valve. CAUTION Hazardous Splashing Fluids. Can injure, burn, or blind. Wear eye protection to prevent injury. B To remove the cartridge, perform the following: 1. Remove controller and loosen valve cartridge slightly using a 19mm socket wrench (A,B). See Fig. 20. A 2. Tighten VA8200A Cartridge Changer to valve body (A,B), close drain cock (C), and turn tool handle ccw to C unscrew cartridge (D). See Fig. 21. 3. Pull handle out to clear VA8200A ball valve (A), close ball valve (B), and open drain cock to remove excess water and steam from chamber (C). See Fig. 22. M16275 4. Unscrew end cap (A) and remove cartridge from chamber (B). See Fig. 23. 5. Clean or replace cartridge. Fig. 26. Disconnecting valve cartridge and draining chamber. B A A M16274 B M16276 Fig. 24. Loosening valve cartridge. Fig. 27. Removing valve cartridge. To reinstall cartridge into the valve, use the same process and figures. Perform steps in reverse order. All figure arrows are backwards (except Fig. 20, arrow A). Proceed as follows: 1. Replace cartridge into chamber (B) and screw end cap onto VA8200A (A). See Fig. 23. 2. Close drain cock (C), open ball valve (B), and push handle in (A). See Fig. 22. 3. Turn tool handle cw to screw in cartridge (D), open drain cock to drain chamber of remaining water and steam (C), and loosen VA8200A Cartridge Changer from valve body (B,A). See Fig. 21. 4. Tighten valve cartridge using a 19mm socket wrench (A,B) and replace controller. See Fig. 20. 13 62-3048—2 62-3048—2 14 15 62-3048—2 Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 ® U.S. Registered Trademark © 2006 Honeywell International Inc. 62-3048—2 G.R. Rev. 02-06

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