Toshiba Workgroup17 All in One Printer User Manual
Contents
1. GAS LINE SERVICE VALVE FIG 1 D I D FEMALE BRAZED CONNECTION WITH 1 4 SAE FLARE GAS LINE 1 4 TURN BALL SERVICE VALVE D PRESSURE TAP FITTING I D FEMALE BRAZED CONNECTION WITH 1 4 SAE FLARE PRESSURE TAP FITTING FIG 2 From Dwg 21D153074 Rev 10 18 AC56D1 1 7 Installers Guide S TRANE Trane A business of American Standard Companies Trane has a policy of continuous product and product data improvement and it reserves the right to change www trane com design and specifications without notice2. the unit location must be far enough away from any structure to prevent excess roof run off water from pouring directly on the unit Do not locate unit s close to bedroom s 4 The top discharge area must be unrestricted for at least five 5 feet above the unit 5 When the outdoor unit is mounted on a roof be sure the roof will support the unit s weight Properly selected isolation is recommended to prevent sound or vibration transmission to the building structure 6 The maximum length of refrigerant lines from outdoor to indoor unit should NOT exceed sixty 60 feet 7 If outdoor unit is mounted above the air handler maxi mum lift should not exceed sixty 60 feet suction line If air handler is mounted above condensing unit maxi mum lift should not exceed sixty 60 feet liquid line NOTE Refer to Refrigerant Piping Software Pub No 32 3312 0 the position of the denotes the latest revision number 8 Locate and install indoor coil or air handler in accor dance with instruction included with that unit Installers Guide BASEPAN TAB REMOVAL C INSTALLING REFRIGERANT LINES A CAUTION If using existing refrigerant lines make certain that all joints are brazed not soldered Condensing units have provisions for braze connections Pressure taps are provided on the service valves of outdoor unit for compressor suction and liquid pressures The indoor end of the recommended refrigeran
3. AIR HANDLE AIR CONDITIONER m my di YIZYIo Le m e WI PRINTED FROM B152901 P02 PRINTED FROM B152908P03 CONNECTIONS TO BE MADE FOR OPERATION OF BLOWER WITH HUMIDISTAT IN COOLING STAGE OR 2 STAGE VARIABLE SPEED T STAT FURNACE AIR CONDITIONER 2 STAGE FURNACE R CONDITIONER re eee TT eee ee PRINTED FROM B152903 P02 W2 present only on 2 stage hermostat and furnace PRINTED FROM B152907P04 Notes 1 Be sure power supply agrees with equipment nameplate LEGEND Power wiring and grounding of equipment must comply with local codes Low voltage wiring to be No 18 AWG minimum conductor FACTORY WIRING ODT B must be set lower than ODT A If outdoor thermostats ODT are not used connect W1 to W2 and W3 FIELD WIRING 18 AC56D1 1 5 Installers Guide SUBCOOLING CHARGING IN COOLING ABOVE 55 F OD AMBIENT The Trane company has always recommended installing Trane approved matched indoor and outdoor systems All 13 SEER Trane split systems are ARI rate
4. S TRANE 2TTB SVNO1A EN 18 AC56D1 1 Condensing Units 2TTB3 ALL phases of this installation must comply with NATIONAL STATE AND LOCAL CODES IMPORTANT This Document is customer property and is to remain with this unit Please return to service information pack upon completion of work These instructions do not cover all variations in systems nor provide for every possible contingency to be met in connection with installation All phases of this installation must comply with NATIONAL STATE AND LOCAL CODES Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser s purposes the matter should be referred to your installing dealer or local distributor A GENERAL A WARNING This information is intended for use by individuals posses sing adequate backgrounds of electrical and mechanical experience Any attempt to repair a central air conditioning product may result in personal injury and or property damage The manufacturer or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use NOTICE Trane has always recommended installing Trane approved matched indoor and outdoor systems The benefits of installing approved matched systems are maximum efficiency optimum performance and best overall system reliability Check for transportation damage after unit is uncrated Rep
5. ap and pressure tap cap finger tight then tighten an additional 1 6 turn See Figure 4 If refrigerant lines are longer than 15 feet and or a different size than recommended it will be necessary to adjust system refrigerant charge upon completion of installation See page 6 or in the unit Service Facts GAS LINE BALL SERVICE VALVE 1 4 TURN ONLY COUNTERCLOCKWISE FOR FULL OPEN 77s POSITION UNIT SIDE ae OF VALVE PRESSURE TAP PORT GAS LINE CONNECTION COOLING Co 1 CORE Installers Guide E ELECTRICAL CONNECTIONS A WARNING When installing or servicing this equipment ALWAYS exercise basic safety precautions to avoid the possibility of electric shock 1 Power wiring and grounding of equipment must comply with local codes Power supply must agree with equipment nameplate Install a separate disconnect switch at the outdoor unit Ground the outdoor unit per local code requirements a F WO N Provide flexible electrical conduit whenever vibration transmission may create a noise problem within the structure 6 The use of color coded low voltage wire is recommended to simplify connections between the outdoor unit the thermostat and the indoor unit Table 1 NEC Class II Control Wiring 24 VOLTS WIRE SIZE MAX WIRE LENGTH 18 AWG 150 FT 16 AWG 225 FT 14 AWG 300 FT 7 Table 1 defines maximum total length of low voltage wiring from outdoor unit to indo
6. d with only TXV indoor systems The benefits of installing approved indoor and outdoor split systems are maximum efficiency optimum performance and the best overall system reliability The following charging methods are therefore prescribed for systems with indoor TXVs 1 Subcooling in the cooling mode is the only recommended method of charging above 55 F ambient temperatures 2 For best results the indoor temperature should be kept between 70 F to 80 F Add system heat if needed 3 At start up or whenever charge is removed or added the system must be operated for a minimum 20 minutes to stabilize before accurate measurements can be made 4 Measure Liquid Line Temperature and Refrigerant Pressure at service valves 5 Determine total refrigerant line length and height lift if indoor section is above the condenser 6 Determine the Design Subcool Charging Temperature from the unit nameplate 7 Locate this value in the appropriate column of the Subcooling Charging Table Locate your liquid line temperature in the left column of the table and the intersecting liquid line pressure under your nameplate subcool value column Add refrigerant to raise the pres sure to match the table or remove refrigerant to lower the pressure Again wait 20 minutes for the system conditions to stabilize before adjusting charge again 8 When system is correctly charged you can refer to System Pressure Curves in Service Facts t
7. h Suction Pressure Too Low Liquid Refrig Floodback TXV System LD Coil Frosting Compressor Runs Inadequate or No Cooling ELECTRICAL Compressor amp O D Fan Do Not Start Compressor Will Not Start But O D Fan Runs O D Fan Won t Start Compressor Hums But Won t Start Compressor Cycles on IOL LD Blower Won t Start P Primary Causes S Secondary Causes CHECKOUT PROCEDURE WITH MAIN POWER DISCONNECTS CLOSED ON INDOOR THERMOSTAT SWITCH SETTING TO CHECK Sump Heat 2 mornan x S af co x x x x x x _ X X X X X X 4 Checking Performance amp Charge fem f etet x Te Also set thermostat dial to call for cooling or heating as necessary Fan Switch in as om ee a ee ee eee COMPONENT OPERATION Comp Furnace Sump Heat Heater Comes On Indoor Outdoor Blower Fan Runs Runs Compressor Runs pox ft d e USE CHARTS ATTACHED TO O D UNIT gt Inform owner on how to operate system and what to expect of it At the same time deliver Owner s Use and Care Booklet Check only necessary if heating unit is used for indoor section and wiring has been disturbed during installation of cooling equipment When applicable 18 AC56D1 1 Installer s Guide TYPICAL FIELD HOOK UP DIAGRAMS T STAT ae R CONDITIONER T STAT
8. ld brazed connections must be checked for leaks Pressurize through the service valve ports the indoor unit and field refrigerant lines with dry nitrogen to 350 400 psi Use soap bubbles or other leak checking methods to see that all field joints are leak free If not release pressure then repair SYSTEM EVACUATION NOTE Since the outdoor unit has a refrigerant charge the gas and liquid line valves must remain closed 1 Upon completion of leak check evacuate the refrigerant lines and indoor coil before opening the gas and liquid line valves 2 Attach appropriate hoses from manifold gauge to gas and liquid line pressure taps NOTE Unnecessary switching of hoses can be avoided and complete evacuation of all lines leading to sealed system can be accomplished with manifold center hose and connecting branch hose to a cylinder of HCFC 22 and vacuum pump 3 Attach center hose of manifold gauges to vacuum pump 4 Evacuate until the micron gauge reads no higher than 350 microns 5 Close off valve to vacuum pump and observe the micron gauge If gauge pressure rises above 500 microns in one 1 minute then evacuation is incomplete or system has a leak 6 If vacuum gauge does not rise above 500 microns in one 1 minute the evacuation should be complete 7 With vacuum pump and micron gauge blanked off open valve on HCFC 22 cylinder and charge refriger ant lines and indoor coil with vapor to tank pressure of HCFC 22 sup
9. o verify typical performance CP e o o e w o e 102 108 109 eo _ a 26 100 ec o o e o 200 SUBCOOL CHARGING TABLE CORRECTIONS FOR LINE LENGTH AND RISE i Z W wW Ti J o u W ui Z wm _ O Subtract 5 psig from S C Table Pressure 10 20 25 Add 5 psig to Subcool Charging Table Pressure Use Design Subcool Value from Table 30 40 60 TOTAL REFRIGERANT LINE LENGTH FEET 18 AC56D1 1 Installer s Guide 2TTB3 OUTLINE DRAWING NOTE ALL DIMENSIONS ARE IN MM INCHES SERVICE PANEL ELECTRICAL AND REFRIGERANT COMPONENT CLEARANCES PER PREVAILING CODES TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR AT LEAST 1524 5 FEET ABOVE UNIT UNIT SHOULD BE PLACED SO ROOF RUN OFF WATER DOES NOT POUR DIRECTLY ON UNIT AND SHOULD BE AT LEAST 305 12 FROM WALL AND ALL SURROUNDING SHRUBBERY ON TWO SIDES OTHER TWO SIDES UNRESTRICTED TT K ELECTRICAL SERVICE _____ PANEL E 1 0 FEMALE BRAZED CONNECTION WITH 1 4 SAE FLARE 1 PRESSURE TAP FITTING 22 2 1 8 DIA HOLE 25 CT l LIQUID LINE SERVICE VALVE a LOW VOLTAGE 28 6 1 1 8 DIA K O WITH 22 2 1 8 DIA HOLE IN CONTROL BOX BOTTOM FOR ELECTRICAL POWER SUPPLY LIQUID LINE SERVICE VALVE p T 1 D FEMALE BRAZE CONNECTION WITH 1 4 SAE H FLARE PRESSURE TAP FITTING
10. or unit and to thermostat 8 Mount the indoor thermostat in accordance with instruc tion included with the thermostat Wire per appropriate hook up diagram included in these instructions F COMPRESSOR START UP After all electrical wiring is complete SET THE THERMO STAT SYSTEM SWITCH IN THE OFF POSITION SO COMPRESSOR WILL NOT RUN and apply power by closing the system main disconnect switch This will activate the compressor sump heat where used Do not change the Thermostat System Switch until power has been applied for one 1 hour Following this procedure will prevent potential compressor overload trip at the initial start up G OPERATIONAL AND CHECKOUT PROCEDURES Final phases of this installation are the unit Operational and Checkout Procedures which are found in this instruction see table below and pages 6 and 8 To obtain proper perfor mance all units must be operated and charge adjustments made in accordance with procedures found on page 6 and in the Service Facts H SEACOAST SHIELD Units installed within one mile of salt water including seacoasts and inland waterways require the addition of BAYSEAC001 Seacoast Kit at the time of installation IMPORTANT See Limited Warranty information in Use and Care Manual I TROUBLESHOOTING TROUBLESHOOTING CHART WHAT TO CHECK SYSTEM FAULTS REFRIGERANT CIRCUIT Liquid Pressure Too High Liquid Pressure Too Low Suction Pressure Too Hig
11. ort promptly to the carrier any damage found to the unit To determine the electrical power requirements of the unit refer to the nameplate of the unit The electrical power available must agree with that listed on the nameplate B LOCATION AND PREPARATION OF THE UNIT 1 When removing unit from the pallet notice the tabs on the basepan Remove tabs by cutting with a sharp tool as shown in Figure 2 see page 2 2 The unit should be set on a level support pad at least as large as the unit base pan such as a concrete slab If this is not the application used please refer to application bulletin Trane APB2001 02 3 The support pad must NOT be in direct contact with any structure Unit must be positioned a minimum of 12 from any wall or surrounding shrubbery to insure adequate airflow Clearance must be provided in front of control box access panels amp any other side requiring 1 5 FT ABOVE UNIT UNRESTRICTED N AWM WM N N H i N WW MMM AMM AWM a a aa a 22A aa a noA ZA A Ss SS CA Z s eS cS eS cS SS mao es a aa oi eas Con ee ae ee a Sa eB Sa rs a Z Z Ss a a a A A a a eel ae ee ee A A Ss ZZ Z Sas r Aa D n ea A T A E oe N eo a R Z ZE a PBS oe Cree EB we yyw AWAM NALL service access to meet National Electrical Code Also
12. ply 8 Close valve on HCFC 22 supply cylinder Close valves on manifold gauge set and remove refrigerant charging hoses from liquid and gas pressure tap ports NOTE A 3 16 Allen wrench is required to open liquid line service valve A 1 4 Open End or Adjustable wrench is required to open gas line valve A 3 4 Open End wrench is required to take off the valve stem cap 18 AC56D1 1 10 11 12 Installers Guide GAS LINE SERVICE VALVE ROLLED EDGE TO CAPTIVATE STEM CAP gt a HEX HEADED UNIT SIDE OF VALVE SYSTEM SERVICE VALVE SERVICE PORT GAS LINE CONNECTION The liquid line shut off valve can now be opened Remove shut off valve cap Fully insert hex wrench into the stem and backout counterclockwise until valve stem just touches rolled edge approximately five 5 turns observing WARNING statement on page 2 See Figure 3 Replace liquid service pressure tap port cap and valve stem cap These caps MUST BE REPLACED to prevent leaks Replace valve stem cap and pressure tap cap finger tight then tighten an additional 1 6 turn The gas valve can now be opened Open the gas valve by removing the shut off valve cap and turning the valve stem 1 4 turn counterclockwise using 1 4 Open End or Adjustable wrench See Figure 4 The gas valve is now open for refrigerant flow Replace valve stem cap to prevent leaks Again these caps MUST BE REPLACED to prevent leaks Replace valve stem c
13. r joists or other framing in a structure use isolation type hangers 2005 American Standard Inc All Rights Reserved b Isolation hangers should also be used when refriger ant lines are run in stud spaces or enclosed ceilings c Where the refrigerant lines run through a wall or sill they should be insulated and isolated d Isolate the lines from all ductwork D SERVICE VALVE OPERATION BRASS LIQUID AND GAS LINE SERVICE VALVES The Brass Liquid and Gas Line Service Valves are factory shipped in the seated position to hold factory charge The pressure tap service port when depressed opens only to the field brazing side of the valve when the valve is in the seated position The liquid line valve is not a back seating valve see WARNING below A WARNING Extreme caution should be exercised when opening the Liquid Line Service Valve Turn valve stem counterclock wise only until the stem contacts the rolled edge See Figure 3 No torque is required BRASS GAS LINE BALL SERVICE VALVE The Brass Gas Line Ball Service Valve is shipped in the closed position to hold the factory refrigerant charge The pressure tap service port when depressed opens only to the field brazing side when the valve is in the closed position The Gas Line Ball Service Valve is full open with a 1 4 turn See Figure 4 BRAZING REFRIGERANT LINES 1 Remove lower access cover to access service valves 2 Before brazing remove plugs from exte
14. rnal copper stub tubes Clean internal and external surfaces of stub tubes prior to brazing 3 Cut and fit tubing minimizing the use of sharp 90 bends 4 Insulate the entire gas line and its fittings 5 Do NOT allow uninsulated liquid line to come in direct contact with bare gas line 6 Precautions should be taken to avoid heat damage to the pressure tap valve core during brazing It is recommended that the pressure tap port valve core be removed and a wet rag wrapped around the valve body NOTE Use care to make sure that no moisture enters pressure tap port while wet rag is being used NOTE Precautions should be taken to avoid heat damage to basepan during brazing Itis recommended to keep the flame directly off of the basepan 7 Use a Dry Nitrogen Purge and Brazing Alloy without flux when brazing the field line to the copper factory connection Flow dry nitrogen into either valve pressure tap port thru the tubing and out the other port while brazing 8 Braze using accepted good brazing techniques LEAK CHECK IMPORTANT Replace pressure tap port valve core before attaching hoses for evacuation 18 AC56D1 1 LIQUID LINE SERVICE VALVE ROLLED EDGE TO CAPTIVATE STEM ne UNIT SIDE OF lt HEX HEADED SERVICE VALVE VALVE SYSTEM LIQUID LINE CONNECTION SERVICE PORT After the brazing operation of refrigerant lines to both the outdoor and indoor unit is completed the fie
15. t line sets may be straight or with a 90 degree bend depending upon situa tion requirements This should be thoroughly checked out before ordering refrigerant line sets The gas line must always be insulated A CAUTION In scroll compressor applications dome temperatures may be hot Do not touch top of compressor may cause minor to severe burning The units are factory charged with the system charge required when using fifteen 15 feet of rated connecting line Unit nameplate charge is the same Final refrigerant charge adjustment is necessary Use the Subcooling Charging procedure on page 6 or in the outdoor unit Service Facts 1 Determine the most practical way to run the lines 2 Consider types of bends to be made and space limitations NOTE Large diameter tubing will be very difficult to rebend once it has been shaped 3 Determine the best starting point for routing the refriger ant tubing INSIDE OR OUTSIDE THE STRUCTURE 4 Provide a pull thru hole of sufficient size to allow both liquid and gas lines 5 Be sure the tubing is of sufficient length 6 Uncoil the tubing do not kink or dent 7 Route the tubing making all required bends and properly secure the tubing before making connections 8 To prevent a noise within the building structure due to vibration transmission from the refrigerant lines the following precautions should be taken a When the refrigerant lines have to be fastened to floo
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