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Canon 70 Printer User Manual
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1. A92446 Fig 1 Model 38TRA clearance on 1 side of unit and 12 in on all remaining sides must be maintained Maintain a distance of 24 in between air condi tioners Position so snow ice and water from roof or eaves cannot fall directly on unit On rooftop applications locate unit at least 6 in above roof surface Where possible place unit above a load bearing wall Arrange supporting members to adequately support unit and minimize transmission of vibration to building Consult local codes governing rooftop applications Step 3 Replace Indoor AccuRater Piston If Required Check indoor coil piston to see if it matches the required piston shown on unit rating plate See Fig 2 If it does not match replace indoor coil piston with piston shipped with this unit The piston shipped with outdoor unit is correct for any approved indoor coil combination CAUTION If unit is to be installed on system with a thermostatic expansion valve TXV removal of the indoor coil piston is required Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurri
2. SERES Carrier ME 5 HEATING amp COOLING 38TRA Air Conditioning Unit Installation and Start Up Instructions NOTE Read the entire instruction manual before starting the installation SAFETY CONSIDERATIONS Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instructions pack aged with the kits or accessories when installing Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions attached to the unit Consult local building codes and the National Electrical Code NEC for special instal lation requirements Recognize safety information This is the safety alert symbol When you see this symbol on the unit or in instructions and manuals be alert to the potential for personal injury Understand the signal word DANGER WARNING or CAU TION These words are used with the safety alert symbol DAN GER identifies the most serious hazards which will result in severe personal injury or deat
3. A CAUTION DO NOT BURY MORE THAN 36 IN OF REFRIGERANT TUBING IN GROUND If any section of tubing is buried 3 Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends Leave some slack between the structure and the unit to absorb vibration there must be a 6 in vertical rise to the valve connections on the outdoor unit If more than the recommended length buried refrigerant may migrate to cooler buried section during extended periods of unit shutdown causing refrigerant slugging and possible compressor damage at start up Step 4 Make Piping Connections Outdoor units may be connected to indoor sections using accessory tubing package or field supplied refrigerant grade tubing of correct size and condition For tubing requirements beyond 50 ft consult Long Line Application Guideline which is available at your local distributor CAUTION In some cases noise in the living area has been traced to gas pulsations from improper installation of equipment INSTALLATION RECOMMENDATIONS 1 Locate the unit away from windows 2 Ensure that vapor and liquid line diameters are appropriate to the capacity of the unit See Table 1 When passing refrigerant tubes through the wall seal the opening with RTV or other pliable silicon based caulk See Fig 3 Avoid direct lineset contact with water pipes ductwork floor joists wall studs floors and walls is Do not
4. and voltage to system is within limits shown on unit rating plate Contact local power company for correction of improper voltage See unit rating plate for recommended circuit protection device See Fig 2 NOTE Operation of unit on improper line voltage constitutes abuse and could affect unit reliability See unit rating plate NOTE Use only copper wire between disconnect switch and unit NOTE Install branch circuit disconnect per NEC of adequate size to handle unit starting current but not larger than maximum fuse size shown on unit rating plate Locate disconnect within sight from and readily accessible from unit per Section 440 14 of NEC ROUTE GROUND AND POWER WIRES Remove access panel and control box cover to gain access to unit wiring Extend wires from disconnect through power wiring hole provided and into unit control box See Fig 2 Size wires per NEC but not smaller than minimum wire size shown in presale literature A WARNING The cabinet must have an uninterrupted or unbroken ground according to NEC ANSI NFPA 70 1993 or local codes to minimize personal injury if an electrical fault should occur This may consist of electrical wire or conduit approved for electrical ground when installed in accordance with existing electrical codes Failure to follow this warning could result in an electrical shock fire or death A WARNING To avoid personal injury or death do not supply power to unit with compress
5. 15 ft of field supplied or factory accessory tubing Check refrigerant charge for maximum efficiency See Step 8 Checking Charge INSTALL SOLENOID VALVE IN LIQUID TUBE CAUTION Solenoid valve must be energized during evacuation for effective evacuation Before making liquid tube connections install factory supplied solenoid valve on indoor liquid fitting See Fig 4 Be sure to use flare adapter supplied with the indoor coil when making connec tions CAUTION If a field supplied control power source is needed when adding solenoid wiring must comply with local codes and NEC requirements Remove coil liquid connection cap and discard 2 Mount solenoid valve on liquid tube making sure valve flow arrow points toward indoor coil Mount valve in any position except valve body at top and electric coil at bottom See Fig 4 The solenoid valve is to be installed a maximum of 24 in from indoor coil 3 Braze valve onto end of liquid tube using silver bearing or non silver bearing brazing material Consult local code re quirements 4 Braze flare adapter onto outlet end of the solenoid valve 5 Wire solenoid coil into system control circuit as shown in Fig 6 Table 1 Refrigerant Connections and Recom mended Liquid and Vapor Tube Diameters In UNIT LIQUID SIZE Connect Tube Connect Tube Diameter Diameter Diameter Diameter 018 024 3 8 3 8 5 8 5 8 030 036 3 8 3 8 3 4 3 4 042 048 3 8
6. 3 8 7 8 7 8 060 3 8 3 8 7 8 1 1 8 Notes 1 Tube diameters are for lengths up to 50 ft For tubing lengths greater than 50 ft consult Long Line Application Guideline 2 Do not apply capillary tube indoor coils to these units REFRIGERANT TUBING Connect tubing to fittings on out door unit vapor and liquid service valves See Fig 2 CAUTION A brazing shield MUST be used when tubing sets are being brazed to the service valves to prevent damage to the painted unit surface A WARNING Relieve pressure and recover all refrigerant before system repair or final unit disposal to avoid personal injury or death Use all service ports and open all flow control devices including solenoid valves 4 CAUTION To avoid valve damage while brazing service valves must be wrapped with a heat sinking material such as a wet cloth SWEAT CONNECTION Use refrigerant grade tubing Service valves are closed from factory and ready for brazing After wrapping the service valve with a wet cloth the tubing set can be brazed to the service valve using either silver bearing or non silver bearing brazing material Consult local code requirements Refrig erant tubing and indoor coil are now ready for leak testing This check should include all field and factory joints Step 5 Make Electrical Connections Be sure field wiring complies with local and national fire safety and electrical codes
7. suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with the tubing See Fig 3 Ensure that tubing insulation is pliable and completely sur rounds the vapor line When necessary use hangar straps which are 1 in wide and conform to the shape of the tubing insulation See Fig 3 10 Isolate the hangar straps from the insulation by using metal sleeves bent to conform to the shape of the insulation If refrigerant tubes or indoor coil is exposed to atmospheric conditions for longer than 5 minutes it must be evacuated to 500 microns to eliminate contamination and moisture in the system OUTDOOR UNITS CONNECTED TO FACTORY APPROVED INDOOR UNITS Outdoor unit contains correct system refrig erant charge for operation with indoor unit of the same size when NOTE AVOID CONTACT BETWEEN TUBING AND STRUCTURE INDOOR WALL OUTDOOR WALL PP PUN V 3 DA in INSULATION Z UN THROUGH THE WALL VAPOR LINE LIQUID LINE JOIST HANGER STRAP AROUND VAPOR LINE ONLY VAPOR LINE pe CE XO X 369 t d lt INSULATION 1 LIQUID E MIN LINE SUSPENSION A92469 Fig 3 Piping Installation ELECTRICAL JUNCTION NU COIL FLOW ARROW X VALVE STRAIGHT 3 8 IN STUD NOTE System flow direction must match arrow on bottom of body Fig 4 Solenoid Valve Installation connected by
8. RAM FOR WIRE COLORS IFR IFM AND LLS ARE LOCATED INDOORS ON HEATING COOLING APPLICATIONS IF ACCESSORY IFR IS REQUIRED FOR COOLING ONLY APPLICATIONS LOCATE IFR IN FAN COIL 2 N E C CLASS 2 24V CIRCUIT MIN 40VA REQUIRED C CONTACTOR HC HEATING CONTROL IFM INDOOR FAN MOTOR LLS LIQUID LINE SOLENOID VALVE NC NORMALLY CLOSED TRANS TRANSFORMER A93199 Fig 6 24 V Control Circuit Connector Copyright 1993 CARRIER Corp 7310 W Morris St Indianapolis IN 46231 33026c Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations reek z ki PC 101 Catalog No 563 793 Printed in U S A Form 38TRA 3SI Pg 6 1 94 Replaces 38TRA 2SI al aj 2a
9. ency of maintenance may vary depending upon geographic areas such as coastal applications Step 1 Leave User s Manual With Homeowner Explain system operation and maintenance procedures outlined in User s Manual THERMOSTAT SUBASE RAMS MIN 60VA 4 RH im T I LLS NC I Y t Ji t J j TOIFMLINE Y D e l Hewes BLU BRN S all SUPPLY COND UNIT IFR A W ARRANGEMENT A COOLING ONLY TRANS 2 SEE NOTE 2 at ADD JUMPER EN R IN rm I LLS NC YH Ji T l r TO IFM LINE VOLTAGE Tes POWER SUPPLY HC ARRANGEMENT B 1 TRANSFORMER COOLING AND 1 STAGE HEATING TRANS SEE NOTE 2 RHL im n 2a LEAVE JUMPER N RC ON SUBASE N RH TO RC M B LLS I NC Y t mu t t I Y 1 F l 5 r TO IFM LINE D D eJFo WERE BLU V BRN L SUPPLY Gr r F j IFR l Wiq 1 1 I HC4 amp l Wj 4 JHC P UU ARRANGEMENT C 1 TRANSFORMER COOLING AND 2 STAGE HEATING NOTES 1 REFER TO UNIT LABEL WIRING DIAG
10. h WARNING signifies hazards that could result in personal injury or death CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage A WARNING Before installing or servicing system always turn off main power to system There may be more than 1 disconnect switch Turn off accessory heater power if applicable Elec trical shock can cause personal injury or death INSTALLATION Step 1 Check Equipment and Jobsite UNPACK UNIT Move to final location Remove carton taking care not to damage unit INSPECT EQUIPMENT File claim with shipping company prior to installation if shipment is damaged or incomplete Locate unit rating plate on unit corner panel See Fig 2 It contains information needed to properly install unit Check rating plate to be sure unit matches job specifications Step 2 Install on a Solid Level Mounting Pad If conditions or local codes require the unit be attached to pad tiedown bolts should be used and fastened through knockouts provided in unit base pan Refer to unit mounting pattern in Fig 2 to determine base pan size and knockout hole location When installing allow sufficient space for airflow clearance wiring refrigerant piping and service Allow 30 in clearance to service end of unit and 48 in above unit For proper airflow a 6 in
11. ng obligations Book 1 4 PC 101 Catalog No 563 793 Tab 3a 2a Printed in U S A Form 38TRA 3SI Pg 1 1 94 Replaces 38TRA 2SI AIR IN AIR DISCHARGE AIR IN ii 1 AIR DISCHARGE AIR IN VAPOR LINE CONN A AIR DISCHARGE 9 UNIT SIZE 3 8 DIA TIEDOWN KNOCKOUTS 2 PLACES IN BASEPAN NOTES 1 ALLOW 30 CLEARANCE TO SERVICE END OF UNIT 48 ABOVE UNIT 6 ON ONE SIDE 12 ON REMAINING SIDE AND 24 BETWEEN UNITS FOR PROPER AIRFLOW 2 MINIMUM OUTDOOR OPERATING AMBIENT IN COOLING MODE IS 55 F UNLESS LOW AMBIENT CONTROL IS USED MAX 125 F 5 SERIES DESIGNATION IS THE 13TH POSITION OF THE UNIT MODEL NUMBER 6 CENTER OF GRAVITY UNIT RATING ae PLATE FIELD POWER SUPPLY CONN 7 8 DIA HOLE WITH 1 1 8 DIA KNOCKOUT AND 1 3 8 DIA KNOCKOUT FIELD CONTROL s SUPPLY CONN m Tig 8 DIA HOLE APRES PANEL 3 3 DIA LIQUID LINE CONN A92471 In 018 27 1 2 6 15 16 024 048 34 15 16 9 3 4 060 301 Series 45 11 13 16 060 311 Series 34 15 16 9 3 4 Fig 2 Unit Reference Drawing
12. or terminal box cover removed Use No 18 AWG color coded insulated 35 C minimum wire If thermostat is located more than 100 ft from unit as measured along the control voltage wires use No 16 AWG color coded wire to avoid excessive voltage drop Use furnace transformer fan coil transformer or accessory trans former for control power 24 v 40va minimum NOTE Use of available 24 v accessories may exceed the mini mum 40 va power requirement Determine total transformer load ing and increase the transformer capacity or split the load with an accessory transformer as required Step 6 Install Electrical Accessories Refer to the individual instructions packaged with the kits or accessories when installing Step 7 Start up 1 Fully back seat open liquid and vapor service valves 2 Unit is shipped with valve stem s front seated and caps installed Replace stem caps after system is opened to refrig erant flow back seated Replace caps finger tight and tighten additional 1 6 turn with wrench 3 Close electrical disconnects to energize system 4 Set room thermostat at desired temperature Be sure set point is below indoor ambient temperature 5 Set room thermostat at COOL and fan switch at FAN or AUTO as desired Operate unit for 15 minutes Check system refrigerant charge See Step 8 Checking Charge Step 8 Checking Charge Factory charge is shown on unit rating plate See Fig 2 CAUTION Do no
13. t disable low pressure switch during a condenser pump down Compressor damage may occur if run at a negative suction pressure CAUTION Compressor damage may occur if system is overcharged CONNECT GROUND AND POWER WIRES Connect ground wire to ground connection in control box for safety Connect power wiring to contactor as shown in Fig 5 DISCONNECT PER N E C AND OR LOCAL CODES CONTACTOR FIELD POWER WIRING e O O FIELD GROUND WIRING GROUND LUG A91056 Fig 5 Line Power Connections CONNECT CONTROL WIRING Route 24 v control wires through control wiring grommet and connect to brown and blue pigtails supplied in unit splice box See Fig 6 A WARNING Service valve gage ports are not equipped with Schrader valves To prevent personal injury make sure valves are fully back seated before removing gage port caps Wear safety glasses and gloves when handling refrigerant Adjust charge by following procedure shown on the superheat charging tables located on unit information plate CAUTION Do not vent refrigerant to atmosphere Recover during system repair or final unit disposal CARE AND MAINTENANCE For continuing high performance and to minimize possible equip ment failure it is essential that periodic maintenance be performed on this equipment Consult your servicing contractor or User s Manual for the proper frequency of maintenance Frequ
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