Honeywell Thermostat Y594 User Manual - Honeywell Thermostat Manual Download

Latest

Sunday, April 5, 2020

Honeywell Thermostat Y594 User Manual

Y594 (Multistage Thermostat Subbase) Package ¨ TRADELINE INSTALLATION INSTRUCTIONS APPLICATION Subbase Ratings These Y594G and Y594J combination packs are designed SWITCH RATING: 7.5A inrush, 2.5A running at 30 Vac. to meet the specific requirements of Carrier heat pump MOUNTING: Designed for mounting on wall or horizontal equipment. The Y594 packs are designed for 2 stage heat outlet box. and 1 stage cool applications. The system switch is SUPL HT-HEAT-OFF-COOL or SUPL HT-ON-OFF. The fan switch is AUTO-ON. See Table 1 for model information and cross reference from Carrier part numbers. Table 1. Heat Pump Thermostat/Subbase Combinations. Fig. Changeover OS No. No. Contains Replaces Honeywell Replaces Carrier Mode Y594G1666 7 T874G2004 Y507J1011 T874G1055 99TZ90041106 HH07AT171 Manual Q674L1892 Q674L1041 HH93AZ175 changeover in cooling Y594G1674 6 T874G2004 Y507J1003 T874G1055 99TZ90040106 HH07AT171 Auto Q674J1274 Q674J1035 HH93AZ173 changeover in cooling Y594J1001 5 T874J1069 — T874J1002 — HH07AT175 Manual Q674L1900 Q674L1074 or HH93AZ186 or changeover in Q674L1637 HH93AZ195 cooling Y594J1019 4 T874J1069 — T874J1002 — HH07AT175 Auto Q674J1282 Q674J1068 or HH93AZ183 or changeover in Q674J1159 HH93AZ196 heating Thermostat Ratings OPERATION SWITCHING: sealed mercury switch. The two stages of heat are energized sequentially with SWITCH RATINGS: changes in temperature. Stage one comes on first; then if First Stage Heating and Cooling: 6.5A inrush, 1.5A the temperature at the thermostat continues to move away maximum running at 25 Vac. from the setpoint, the second stage comes on. The Second Stage Heating and Cooling: 1.5A maximum thermostat is set with about 2°F (1°C) between stages. As running at 30 Vac. the heating equipment runs and the temperature begins to Changeover Switch: 6.5A inrush, 1.5A running at 25 move back toward the set point, stage 2 goes off first, then Vac. stage one. HEAT ANTICIPATOR: First Stage Heating and Cooling: fixed voltage type, 1.0A. Subbases include an LED (light emitting diode) indicator. Second Stage Heating: adjustable, 0.10 to 1.2A; other This indicator lights to show that the heat pump cannot models, fixed voltage type, 1.0A. operate and the supplemental heat stage is providing all TEMPERATURE SETTING RANGE: 42°F to 88°F (6°C to heating. This condition can occur in two instances; when 31°C). the subbase system switch is set at SUPL. HT. and when the heat pump compressor has malfunctioned. The LEDs are not field replaceable. Copyright © 1995 Honeywell Inc. • • All Rights Reserved X-XX UL 69-0920 Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE RECYCLING NOTICE Mounting and Wiring the Subbase This control contains mercury in a sealed tube. Disconnect power supply to prevent electrical shock or Do not place control in the trash at the end of its equipment damage. All wiring must comply with local useful life. electrical codes and ordinances. Follow equipment manufacturer wiring instructions when available. If this control is replacing a control that contains mercury in a sealed tube, do not place your old Mount the subbase on a wall or horizontal outlet box. To control in the trash. mount it on a vertical outlet box, order Honeywell part no. Contact your local waste management authority for 196393A Cover Plate Assembly, which includes an instructions regarding recycling and the proper adapter ring with two screws for vertical outlet box disposal of this control, or of an old control mounting and a cover plate to cover marks on the wall. containing mercury in a sealed tube. To install subbase, proceed as follows: ᕡ Prepare a hole for the thermostat wires at the chosen location. Run wires to location. INSTALLATION ᕢ Pull about 6 in. (152 mm) of wire through the hole. When Installing this Product… ᕡ Read these instructions carefully. Failure to follow IMPORTANT them could damage the product or cause a hazard- Use 18 gauge, color-coded thermostat cable for ous condition. proper wiring. ᕢ Check the ratings given in the instructions and on ᕣ the product to make sure the product is suitable for If mounting the subbase on a vertical outlet box, your application. install adapter ring with the two screws provided in ᕣ Installer must be a trained, experienced service the assembly. See Fig. 1. ᕤ technician. Pull wire through cover plate, if used, and subbase ᕤ After installation is complete, check out product wire opening. Secure the cover plate and subbase operation as provided in these instructions. with the two screws provided, but do not tighten down. ᕥ Level the subbase using a spirit level. See Fig. 2. CAUTION Tighten subbase mounting screws. The subbase ᕡ Disconnect power supply to prevent electrical mounting slots provide for minor out-of-level shock or equipment damage. adjustments. ᕢ Run wires as close as possible to the sub- base. To prevent interference with the IMPORTANT thermostat linkage, keep wire length to a An incorrectly leveled subbase will cause the minimum. Push excess wire back into the temperature control to deviate from setpoint hole, and plug hole to prevent drafts from ᕦ affecting thermostat operation. Connect the system wires to the subbase. See ᕣ Do not overtighten thermostat captive Fig. 4-7. A letter is stamped near each terminal for mounting screws because damage to identification. The terminal barrier permits straight or subbase threads can result. conventional wraparound wiring connections. See ᕤ Do not short across coil terminals on relay. Fig. 3. Either method is acceptable. Run wires as This may burn out the heat anticipator. close as possible to the subbase, keeping wire ᕥ Never install more than one wire per terminal length to a minimum. Push excess wire back into unless factory-supplied jumper with spade hole. Plug hole to prevent drafts. terminal is used. IMPORTANT Thermostats are calibrated at the factory by using Mounting the Thermostat subbases mounted at true level. Inaccurate sub- ᕡ Remove the thermostat cover by pulling the bottom base leveling will cause thermostat control edge of the cover away from the base until it snaps deviation. free of the retaining posts. NOTE: The cover is hinged at the top and must be Location removed by pulling out at the bottom. Install the thermostat about 5 ft (1.5m) above the floor in an area with good air circulation at average room ᕢ Carefully remove and discard the polystyrene temperatures. packing insert that protects the mercury switches during shipment. Do not mount the thermostat where it may be affected by: ᕣ Turn the thermostat over and locate the spring — drafts, or dead spots (no air movement) behind doors, fingers that engage the subbase contacts. Make in corners, and above or below shelves. sure the spring fingers are NOT bent flat, preventing — hot or cold air from ducts. proper electrical contact with the subbase. — radiant heat from the sun, lights, or appliances. ᕤ Set adjustable heat anticipator indicators, if — concealed pipes and chimneys. provided, as described in Setting the Heat — unheated or uncooled areas such as an outside wall Anticipator(s) section. behind the thermostat. 69-0920 2 Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE VERTICAL MOUNTING OUTLET SCREWS (2) ᕥ Note the tabs along the top inside edge of the BOX 1 thermostat base. The tabs fit into the subbase COVER notches. Mount the thermostat on the subbase and ADAPTER PLATE 2 tighten the captive mounting screws. See Fig. 1. Do RING 2 not overtighten captive mounting screws. This can damage the threads in the subbase. ᕦ Place the upper edge of the thermostat cover on the base and swing cover downward until it engages retaining posts on base. Tighten the locking cover 1 screws if assembly is provided. HORIZONTAL OUTLET BOX SETTING Setting the 2nd Stage (Y594G1666 and Y594G1674 Only) Heat Anticipator Set the adjustable heat anticipator to match its primary control THERMOSTAT current draw. If the primary control nameplate has no rating or if further adjustment is necessary, use the following procedure OL CO THERMOSTAT 0 8 to measure the current draw of each stage: 0 0 7 COVER 50 6 ᕡ Remove thermostat from the subbase. Make sure 0 SUBBASE 0 8 0 7 the power is on. 50 6 AT HE ᕢ Connect an ac ammeter of appropriate range SUBBASE MOUNTING SCREWS (2) between the heating terminals of the subbase: Stage 2: between W2 and R. ᕣ CAPTIVE 50 60 70 80 Move the system switch to HEAT or ON. MOUNTING SCREWS (2) ᕤ After one minute, read the ammeter and record the reading. 1 NOT INCLUDED WITH UNIT. ᕥ Remount the thermostat and use a ballpoint pen to 2 ACCESSORY PARTS AVAILABLE (193121A). M6009 set the adjustable heat anticipator(s) to match the reading(s) measured in step 4. See Fig. 8. Fig. 1. Installation of subbases and thermostat on outlet box. Temperature Setting Move the heating and cooling levers to the desired positions. The minimum differential between heating and TOP WIRING THERMOSTAT cooling setpoints is 3°F (2°C). Some thermostat models MOUNTING TERMINAL CABLE OPENING SPIRIT LEVEL HOLES (2) have nonadjustable lever stops, which set the maximum heating control point at 68°F or 72°F (20°C or 22°C) and the minimum cooling control point at 78°F (26°C). Do not attempt to exceed these limits. Some models have only one lever for heating and cooling. Subbase Setting Available subbase system switch positions vary by thermostat model. Positions control thermostat operation as follows: OFF: Heating and cooling systems are off. If the fan switch is at the AUTO position, the fan is also off. MOUNTING POST (2) FOR TO SPRING FINGER HOLES (2) MOUNTING CONTACTS ON THE HEAT: Heating system is controlled by the thermostat. THERMOSTAT THERMOSTAT Cooling system is off. (UP TO 12) M927 COOL: Cooling system is controlled by the thermostat. Heating system is off. Fig. 2. Leveling the subbase. ON: Thermostat automatically switches between heat and cool modes, depending on the indoor tempera- ture. SUPL. HT.: Supplemental heat is energized. Cooling FOR STRAIGHT INSERTION– FOR WRAPAROUND– system is off. Compressor cannot operate. STRIP 5/16 in. (8 mm) STRIP 7/16 in. (11 mm) Fan switching positions control fan operation as follows: ON: Fan operates continuously. AUTO: Fan operates with heat pump and supplemental BARRIER heat as controlled by the thermostat. SUBBASE TERMINAL SCREW M928 Fig. 3. Wiring connections. 3 69-0920 Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE ON R FAN G AUTO CO 10 8 C1 12 Y 11 OFF 9 O ON SUPL. CO STAGE HEAT P SUPL. HEAT E 32H1 L ON C 4 6 H2 W2 ON 5 X SUPL. HEAT FIELD WIRING CONNECTION DENOTES CONNECTION POINT BETWEEN SUBBASE AND THERMOSTAT THERMOSTAT SUBBASE SYSTEM COMPONENTS L1 L2 (HOT) 1 FAN R FALL COMPRESSOR CONTACTOR SWITCH Y H1 AUTO 2 G ON 3 FAN RELAY W2 HEAT RELAY 1 H1 ANTICIPATOR 4 OUTDOOR THERMOSTAT H2 ANTICIPATOR SUPL. HT. LED (RED) 5 L HEAT RELAY HEAT RELAY 2 H2 FALL CONTACT 1 C 6 E 8 HEAT RELAY HEAT RELAY 3 RISE CONTACT 2 9 SYSTEM SWITCH X CO C1 ANTICIPATOR "P" RELAY SUPL. HT. "X" RELAY 10 P ON COOL CHANGEOVER OFF VALVE RISE C1 CO 11 O 12 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M4563 Fig. 4. Y594J1019 Thermostat/Subbase switching and internal connections. 69-0920 4 Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE ON R FAN G AUTO C0 10 8 C1 12 Y COOL COOL 9 O OFF C0 STAGE 11 HEAT P SUPL. HEAT SUPL. HEAT E HEAT H1 2 L 3 HEAT C 4 6 H2 5 W2 HEAT X SUPL. HEAT FIELD WIRING CONNECTION DENOTES CONNECTION POINT BETWEEN SUBBASE AND THERMOSTAT THERMOSTAT SUBBASE SYSTEM COMPONENTS L1 L2 (HOT) 1 FALL FAN R COMPRESSOR CONTACTOR H1 SWITCH Y 2 AUTO G 3 ON H1 FAN RELAY HEAT RELAY 1 ANTICIPATOR 2 4 W2 H2 OUTDOOR ANTICIPATOR SUPL. HT. THERMOSTAT FALL 5 LED (RED) H2 L 6 HEAT RELAY HEAT RELAY 2 CONTACT 1 SYSTEM 8 C SWITCH HEAT RELAY RISE 9 SUPL. HT. CONTACT 2 HEAT RELAY 3 E CO C1 ANTICIPATOR HEAT 10 OFF X "X" RELAY COOL "P" RELAY RISE P C1 CO 11 O COOL 12 CHANGEOVER VALVE 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M4564 Fig. 5. Y594J1001 Thermostat/Subbase switching and internal connections. 5 69-0920 Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE ON R FAN G AUTO C1 8 Y OFF 10 CO 9 ON SUPL. HEAT O ON H1 4 2 1 ON E SUPL. HEAT H2 6 W2 L C SUPL. HEAT SUPL. HEAT FIELD WIRING CONNECTION DENOTES CONNECTION POINT BETWEEN SUBBASE AND THERMOSTAT THERMOSTAT SUBBASE SYSTEM COMPONENTS COOL CHANGEOVER VALVE 1 1 O L1 (HOT) H1 ANTICIPATOR L2 FAN SWITCH AUTO G ON 2 R FAN RELAY H1 OUTDOOR FALL THERMOSTAT 4 W 2 EM. HT. RELAY 1 H2 6 H2 ANTICIPATOR EM. HT. RELAY EM. HT. RELAY 2 FALL CONTACT 1 SYSTEM SWITCH E EM. HT. RELAY EM.HT. 8 2 CONTACT 2 RELAY 3 CO C1 ANTICIPATOR L SUPL. HT. RISE SUPL. HT. 9 LED (RED) ON C OFF COMPRESSOR CONTACTOR 1 C1 10 Y RISE 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS 2 N.O. SWITCH – INSTALLER ADDED, TO LIGHT EM. HT. LED AND OVERLOAD PROTECTION AS REQUIRED. WHEN COMPRESSOR OPERATION IS NOT NORMAL. M4565 Fig. 6. Y594G1674 Thermostat/Subbase switching and internal connections. 69-0920 6 Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE ON R FAN G AUTO C1 8 Y 10 CO 9 COOL OFF HEAT SUPL. HEAT O HEAT H1 4 2 1 HEAT E SUPL. HEAT H2 6 W2 L C SUPL. HEAT SUPL. HEAT FIELD WIRING CONNECTION DENOTES CONNECTION POINT BETWEEN SUBBASE AND THERMOSTAT THERMOSTAT SUBBASE SYSTEM COMPONENTS COOL CHANGEOVER VALVE 1 1 O L1 (HOT) H1 ANTICIPATOR L2 FAN SWITCH AUTO G ON 2 R FAN RELAY H1 OUTDOOR FALL THERMOSTAT 4 W 2 HEAT RELAY 1 H2 6 H2 ANTICIPATOR HEAT RELAY HEAT RELAY 2 FALL CONTACT 1 SYSTEM SWITCH E HEAT RELAY HEAT RELAY 3 8 2 CONTACT 2 SUPL. HT. L COMPRESSOR CO 9 HEAT FAULT SUPL. HT. LED (RED) RISE C1 ANTICIPATOR OFF C 10 COOL COMPRESSOR CONTACTOR 1 Y C1 RISE 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS 2 N.O. SWITCH – INSTALLER ADDED, TO LIGHT EM. HT. LED AND OVERLOAD PROTECTION AS REQUIRED. WHEN COMPRESSOR OPERATION IS NOT NORMAL. M4566 Fig. 7. Y594G1666 Thermostat/Subbase switching and internal connections. 7 69-0920 Y594 (MULTISTAGE THERMOSTAT SUBBASE) PACKAGE LED Indication Set system switch on subbase at SUPL. HT. The SUPL. HT. LED should light. Simulate compressor failure and energize the system. The FAULT LED should light. CALIBRATION 0 .1 Thermostat .12 .15 These thermostats are accurately calibrated at the factory. .2 .3 They do not have provision for field calibration. 1.2.8.6 .4 STAGE TWO ANTICIPATOR MOVE INDICATOR TO Thermometer HEATING CONTROL MATCH CURRENT RATING OF PRIMARY CONTROL M4550 The thermometer in your thermostat has been accurately calibrated at the factory. The thermometer should only Fig. 8. Adjustable heat anticipator shown. adjustment if it has been dropped or shifted due to mishandling. To switch positions, use thumb and index finger to slide lever to desired position. Switch lever must stop in detent If the setpoint lever and the thermometer reading do not directly over the desired function indicator mark for proper agree, use the following procedure: system operation. ᕡ Remove the thermostat cover by pulling up from the bottom edge of the cover away from the base until it snaps free of the cover clip. CHECKOUT ᕢ Set the thermostat cover on a table near an accurate thermometer. Heating ᕣ Set the system switch on the subbase at HEAT or ON and Allow ten minutes for cover thermometer to sense the fan switch at AUTO. Move the heating lever on the area temperature; compare the readings. Be careful not the touch the thermometer or breathe on it. thermostat about 10°F (6°C) above room temperature. ᕤ If the readings are the same, replace cover and put Heating (both stages if two-stage thermostat) should start the system into operation. if there is no time delay or outdoor temperature limiting ᕥ If the readings are different, insert a small screw- system, and the fan should come on. Move the heating driver in the thermometer slot and turn it until the lever about 10°F (6°C) below room temperature. Heating thermometers have the same reading. See Fig. 9. and fan should shut off. ᕦ Replace thermostat cover and put the system into operation. Cooling CAUTION Do not operate cooling if outdoor temperature is below 50°F (10°C). Refer to manufacturer recom- mendations. Set the system switch on the subbase to COOL or ON and the fan switch to AUTO. Move the cooling lever on the thermostat about 10°F (6°C) below room temperature. Cooling and fan should start. Move the cooling lever about 10°F (6°C) above room temperature. Cooling and fan should stop. Fan Set the fan switch to ON. Move the system switch to different positions; the fan should run continuously. Move the fan switch to AUTO. Move the system switch to M5070 different positions. Fan operation is controlled with the Fig. 9. Thermometer calibration. heating or cooling system. Home and Building Control Home and Building Control Honeywell International, Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-0920 J.H. 5-95 8 www.honeywell.com/yourhome

No comments:

Post a Comment

Popular Posts