Nordyne Q4 Series User's Manual
Contents
1. M 12 CHARGING CHARTS iinan 13 16 ACCESSORY KIT TABLE irre tecti een eripere ecco 17 WIRING DIAGRAM a aar aa a ct aaaeaii 18 SECTION 1 OWNER INFORMATION WINTER HEATING 1 Outdoor air enters the heat pump 2 The cold heat transfer section outdoor coil extracts the heat from the air as the refrigerant evaporates from a liquid to a cold gas 3 The refrigerant compressed to a hot gas by the heat pump carries the heat to the heat transfer section indoor coil 4 The hot heat transfer section indoor coil releases the heatas the refrigerant condenses from a gas to a liquid 5 The blower circulates the heat throughout the home via the supply duct 6 Therefrigerant returns to the outdoor coil and evaporates once again to absorb more heat SUMMER COOLING 1 Indoor air enters the return air duct 2 The cold heat transfer section indoor coil extracts the heat fromthe air asthe refrigerant evaporates from a liquid to a cold gas 3 The refrigerant drawn to the heat pump and compressed to a hot gas carries the heat outdoors 4 The hot heat transfer section outdoor coil releasesthe heatasthe refrigerant condenses from a gas to a liquid 5 The heat pump outdoor fan discharges the heat to the outside air 6 The refrigerant returns to the indoor coil and evaporate2. 1 Set the thermostat system switch to COOL andthe thermostat fan switch to AUTO See Figure 1 2 Set the thermostat temperature selector to the desired cooling temperature The outdoor unit fan the indoor blower and the compressor will all cycle on and offto maintain the indoor temperature at the desired cooling level NOTE Ifthe thermostat temperature level is re adjusted or if the thermostat system switch is re positioned the outdoor unit fan and the compressor may not start immediately A protective timer circuit holds the compressor and the outdoor fan off for approximately six minutes following a previous operation or the interruption of the main electric power To Operate Your Heat Pump For Heating 1 Set the thermostat system switch for HEAT andthe thermostat fan switch to AUTO See Figure 1 2 Set the thermostat temperature selector to the desired heating temperature The outdoor unit fan the indoor blower and the compressor will all cycle on and off to maintain the indoor temperature at the desired heating level NOTE If the thermostat temperature level is re adjusted or if the thermostat system switch is re positioned the outdoor unit fan and the compressor may not start immediately protective timer circuit holds the compressor and the outdoor fan off for approx imately six minutes following a previous operation or the interruption of the main electrical power Emergency Heat Some the
3. GRAY WHITE Reversing Valve Solenoid T Compressor Outdoor Fan SMS Relay Outdoor Fan Motor Capacitor On units with no pressure switch an orange wire will connect Pin6 and T1 Blower Relay Blower Motor Note See Installation Instructions for specific blower speed setting setting shown is not typical for all units Terminal Block DEFROST BOARD OPERATION CLOSES DURING DEFROST RATING 1 A MAXIMUM CLOSED WHEN Y iS ENERGIZED OPEN WHEN Y 15 DEENERGIZED PROVIDES OFF DELAY TIME OF 5 MIN WHEN Y IS DEENERGIZED WITH CLOSED AND Y ENERGIZED COMPRESSOR RUN TIME IS ACCUMULATED OPENING OF DFT DURING DEFROST OR INTERVAL PERIOD RESETS THE INTERVAL TO Note See Installation Instructions for wiring application and information concerning accessory kits and other options Field Wiring Eu Factory Wiring Low Voltage High Voltage INSTALLER PLEASE LEAVE THESE INSTALLATION INSTRUCTIONS WITH THE HOMEOWNER 707885A Replaces 7078850 Specifications and illustrations subject to change without notice and St Louis MO 707885A without incurring obligations 6 00
4. are shipped from the factory with the following 1 Zero clearance to combustibles 2 Multi speed direct drive blower 3 Blower Speed Relay 4 Horizontal or Down flow duct connections The unit dimensions are shown in Figure 3 Optional field installed electric heater kits are available in 9 kw and 15 kw heating capacities A separate installation instruction document for the electric heaters and their application accompanies this one A two stage heat 24VAC thermostat should be used with electric heater kits installed SAFETY CONSIDERATIONS It is the responsibility of the installer to ensure that the installation is made in accordance with all applicable local and national codes N WARNING Improper installation service adjustment or maintenance may cause explosion fire electrical shock or other hazardous conditions which may result in personal injury or property damage Unless otherwise noted in these instructions only factory authorized kits or accessories may be used with this product Noncompliance may void the unit s warranty Labels Tags When working with this equipment follow all precautions in the literature on tags and on labels provided with the unit and or approved field installed kits The type of hazard and severity are described on each label or tag Pressures Within The System This equipment contains liquid and gaseous refrigerant under high pressure Installation or servi
5. outdoor installations Choosing the location of the unit should be based on minimizing the length of the supply and return ducts Consideration should also be given to availability of electric power service access noise and shade Sufficient clearance for unobstructed airflow through the outdoor coil must be maintained in order to achieve rated performance See Figure 4 for minimum clearances to obstructions Air Filters A suitable air filter must be installed in the return air system Air filter pressure drop must not exceed 0 08 inches w c at 300 fpm Condensate Drain Condensate is removed from the unit through the 3 4 female pipe fitting located on the front side of the unit See Figure 5 Install a 2 inch condensate trap in the drain line of the same size and prime with water When connecting rigid drain line hold the female fitting with a wrench to prevent twisting Do not over tighten Refer to local codes and restrictions for proper condensate disposal requirements 5 3 4 NPT Female Drain Connector SUPPLY RETURN Top View 1 8 1 75 Power Entry Capped Or Q 1 25 Power Entry 6 0 88 Control Wiring Entry SUPPLY RETURN 55 8 Back View Side View Center of Gravity Height in inches Q4S
6. tete t doses 7 s Rigging and MOSUN usd omite eee eee e aed dete edes 7 s ROOTtop ea A ate AS s LL es 7 AIR DUCTS p 7 Unconditioned Spaces 1 hcic ded a RR RR FL RUE Rene da 7 Acoustical Duct WOrk 5 8 e Horizontal to Down flow Conversion sssssssssseeeeeeeennennn enne 8 Olearan6es oe venis Ra teu tele techn Ads ELI LM aD IAM 8 ELECTRICAL WIRING 22 2 uertice cone tecta toc e a voe cuan ace cuz une ced osuere rapa DE sd ial Dra 8 E 8 BloWer Speed en see titt ES 9 e Low Voltage Connections ccccceccecceeeeeeeceeceeeeeaeeeceeeeeceaeeeeeaeeeesneeeeneeeeesieeeeseneeeess 9 ROOM thermostat 5 n eie rn oie te i tci du e ERR be eis 9 Defrost Gycle Timet 52 ii e e 9 START UP AND SYSTEM CHECK 10 gere ELE 10 System Cooling te eno tr dee th te eeu rte he d 10 System Healing tee 10 2 2 0 11 Refrigerant Charging 11 R tine Maintenance nprs aia 11 BLOWER TABLE ics digo
7. 206 184 221 256 160 80 192 218 208 198 222 260 166 271 163 82 209 213 224 265 171 275 169 286 167 e 226 267 181 280 175 291 173 86 256 269 191 282 184 295 178 88 285 194 298 187 90 287 203 300 196 g 303 205 Q4SA 048 OUTDOOR TEMPERATURE F 70 75 80 85 90 95 100 105 Pres Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp 68 188 122 70 191 123 204 135 72 192 140 207 139 222 137 234 146 248 152 74 157 208 154 224 151 239 147 252 160 266 160 76 193 174 210 168 226 160 257 164 270 166 284 167 78 211 182 227 174 259 172 274 171 288 173 309 174 80 229 185 261 183 276 181 292 180 307 180 e O O 263 193 279 191 294 189 310 188 Ir O 297 199 312 197 86 299 208 315 206 317 215 Note All pressures are listed in psig and all temperatures in deg F Sa Shaded Boxes indicate flooded conditions LLL LL Rated Design Values Suction Pressure will be lower than des ign value if indoor air flow entering dry bulb or entering wet bulb temperatures are lower than design Discharge temperatures greater than char
8. 5 34 176 126 186 132 52 206 143 62 227 155 Disch Disch Suc Disch Disch Suc Disch Disch Press Temp Press Press Temp Press Press Temp 14 136 122 21 151 123 28 165 123 35 180 124 43 193 129 53 213 139 63 234 149 23H 15 143 120 22 156 121 29 170 121 183 44 200 126 54 220 134 64 241 143 16 150 162 Note All pressures are listed in psig and all temperatures in deg F 119 30 119 187 120 123 55 227 130 65 248 136 115 194 116 118 57 241 121 67 262 124 Ss Shaded Boxes indicate flooded conditions Rated Design Values Suction Pressure will be lower than design value if indoor air flow entering dry bulb or entering wet bulb temperatures are lower than design Discharge temperatures greater than charted values indicates a refrigerant undercharge Hulo vSro eiqer Q4SA 036 OUTDOOR TEMPERATURE F 70 75 80 85 90 95 100 105 Pres Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp 72 189 153 74 190 167 204 158 76 190 184 205 170 219 78 191 201
9. A 036 Q4SA 048 Q4SA 060 Figure 3 Dimensions d Figure 4 Minimum Clearances UNIT INSTALLATION Ground Level When installing the unit at ground level provide a concrete mounting pad separate from the building foundation The pad must be level to insure proper condensate disposal and strong enough to support the unit s weight Refer to Figure 3 Make sure the slab is a minimum of 2 above the grade and in an area that drains well See Figure 6 Rigging and Hoisting The unit should be lifted using slings and spreader bars The spreader bars are necessary to prevent damaging the top of the unit s cabinet Make sure that the lifting equipment is adequate for the load Refer to Figure 3 for unit weights Keep the unit in an upright position at all times N WARNING To avoid the risk of property damage or personal injury it is the rigger s responsibility to insure that whatever means are used to hoist the unit are safe and adequate N CAUTION All panels must be securely in place when rigging and hoisting The rigging must be located outside the unit s center of gravity Refer to Figure 3 for center of gravity locations Condensate Drain Figure 5 Condensate Drain Rooftop For rooftop installations use the appropriate accessory roof curb and follow all instruc
10. OM BLOWER RELAY fh Green DEFROST BOARD Typical Wiring Field Supplied for 2 Stage Cool 1 Stage Heat External Static Pressure Drop inches water column Model Speed 0 1 0 2 Q4SA 036 High 1600 1510 Medium 1410 1330 Low 1130 1070 Q4SA 048 High 2200 2140 Medium 1940 1890 Low 1560 1510 Q4SA 060 High 2200 2140 Medium 1940 1890 Low 1560 1510 12 Speed set at factory Table 1 Q4 Blower Curves EL vSrO 1 Q4SA 036 Suc Disch Disch Suc Disch Press Press Temp Press Press OUTDOOR TEMPERATURE F 20 30 40 Disch Suc Disch Disch Temp Press Press Temp 133 Suc Disch Disch Suc Disch Disch Suc Press Temp Press Press Temp Press Press Temp Press Par ms 9 50 162 6 60 Disch Press 22 22 Disch Temp 181 158 7o 236 175 153 71 169 149 72 163 144 73 157 Q4SA 048 OUTDOOR TEMPERATURE 0 10 20 30 40 50 60 Suc Disch Disch Suc Disch Disch Suc Disch Disch Suc Disch Disch Suc Disch Disch Suc Disch Disch Suc Disch Disch Press Press Temp Press Press Temp Press Press Temp Press Pr
11. Single Package Heat Pump Installation Instructions 460 Volt Q4 Series IMPORTANT Read these instructions thoroughly before starting the installation Follow all precautions and warnings contained within these instructions and on the unit These instructions are primarily intended to assist qualified individuals experienced in the proper installation of heating and or air conditioning appliances Some local codes require licensed installation service per sonnel for this type equipment All installations must be in accordance with these instructions and with all applicable national and local codes and standards TABLE OF CONTENTS OWNER INFORMATION 3 kldaeluleyle lc 4 SAFETY CONSIDERATIONS eirca ruit toda ce caeso se dadada cuida 5 a Eo AB E a CDU 5 Pressures Within The System nennen nennen nennen 5 INSTALLATION REQUIREMENTS 5 EQUIPMENT 2 eee hohe 5 v Requirements and Codes c i e PERI Date aaa RR aa FEAR 5 LOC ATION sie ore D aer Ee terio EOS Ce A EC Ee eb Fr de ed pics 5 gie E 5 Condensate DraMa etie ul in tee edendo 5 UNIT INSTALLATION 2 1 2 2 22 22 1 esa nic usu rape 7 s Ground eerte etui
12. ay result in damage and could cause premature failure of the system This warning should be followed at initial start up and any time the power has been removed for 12 hours or longer Air Circulation Leave the thermostat system switch set to Off and set the thermostat fan switch to On The blower motor should run continuously Check for air delivery at the register s Ensurethatthere are no obstructions atthe registers orin the ductwork Setthermostat fan switch to Auto System Cooling 1 Set the thermostat system switch to Cool and the thermostat fan switch to Auto Gradually lower the thermostat temperature switch below room temperature and observe that the blower compressor and fan energize Check that air cooler than room temperature is being discharged at the register Listen for any unusual noises 2 After allowing the unit to run for several minutes set the temperature selector above room temperature The fan compressor cycles off with the thermostat The blower should also stop unless fan switch is set to ON position System Heating Set the system thermostat switch to HEAT and set the thermostat fan switch to AUTO Verify that the compressor outdoor fan and blower are energized Check for warm air at the supply registers UNIT MAINTENANCE N WARNING To avoid risk of electrical shock personal injury or death disconnect all electrical power to the unit before pe
13. cing should only be performed by qualified trained personnel thoroughly familiar with this type equipment INSTALLATION REQUIREMENTS Equipment Check Before beginning the installation verify that the unit model is correct for the job The unit model number is printed on the data label All units have been securely packaged at the point of shipment After unpacking the unit carefully inspect it for apparent and concealed damage Claims for damage should be filed with the carrier by the consignee Requirements and Codes The installer must comply with all local codes and regulations which govern this type equipment Local codes and regulations take precedence over any recommendations contained in these instructions All electrical wiring must be made in accordance with local codes and regulations and with the National Electric Code ANSI NFPA 70 or in Canada the Canadian Electric Code Part 1 CSA C 22 1 Air Ducts must be installed in accordance with the standards of the National Fire Protection Association Standards for Installation of Air Conditioning and Ventilation Systems NFPA 90 Standard for Installation of Residence Type Warm Air Heating and Air Conditioning Systems NFPA 90B these instructions and all applicable local codes NFPA publications are available by writing National Fire Protection Association Batterymarch Park Quincy Maine 02269 Unit Location The Q4 series heat pump is designed only for
14. ess Temp Press Press Temp Press Press Temp Press Press Temp 134 20 143 135 25 158 135 31 172 136 51 200 152 62 222 162 15 136 132 21 149 133 26 162 133 32 175 134 40 185 138 52 207 147 63 229 156 16 143 130 22 155 131 27 167 131 33 179 132 41 192 136 53 214 143 64 236 150 17 150 128 2 161 129 28 172 183 130 42 199 133 54 221 138 65 243 144 18 157 167 127 29 177 186 128 43 206 130 55 228 134 66 250 137 Fu pee pue pus pom er pus e m us mm pur m me ep or n 20 122 179 123 45 220 124 57 242 125 68 264 125 Note All pressures are listed in psig and all temperatures in deg F 1 Shaded Boxes indicate flooded conditions Rated Design Values Suction Pressure will be lower than design value if indoor air flow entering dry bulb or entering wet bulb temperatures are lower than design Discharge temperatures greater than charted values indicates a refrigerant undercharge vl ez eiqer Q4SA 060 19 139 13 129 124 20 145 Suc Disch Suc Disch Press Press Temp Press Press OUTDOOR TEMPERATURE F 20 30 40 50 60 Disch Suc Disch Disch Suc Disch Disch Suc Temp Press Press Temp Press Press Temp 127 EXE 127 172 128 51 199 148 61 220 161 125 160 12
15. g diagram and the unit rating plate Connect the line voltage leads to the corresponding terminals on the contactor or the circuit breaker when the field installed circuit breaker kits are used inside the control compartment Use only copper wire for the line voltage power supply to this unit Use proper code agency listed conduit and a conduit connector for connecting the supply wires to the unit and for obtaining proper grounding Grounding may also be accomplished by using the grounding lug provided in the control box N WARNING The unit cabinet must have and uninterrupted or unbroken electrical groundto minimize personal injury if an electrical fault should occur This ground may consist of electrical wire or approved conduit when installed in accordance with existing national or local codes Blower Speed The blower speed is preset at the factory for operation at the same speed for heating and cooling For optimum system performance and comfort it may be necessary to change the factory set speed To change the blower speed 1 Disconnect all electrical power to the unit and remove the service panel 2 Cut the wire tie holding the motor lead bundle See Figure 9 for detailed information on the appropriate model and speed desired 3 If the desired heating blower speed is different than the cooling speed remove and discard the jumper wire between terminals 6 and 4 on the blower relay Place the desired heat
16. he supply duct work Acoustical insulation must be in accordance with the current revision of the Sheet Metal and Air Conditioning Contractors National Association SMACNA application standard for duct liners Duct lining must be UL classified batts or blankets with a fire hazard classification of FHC 25 50 or less Fiber duct work may be used in place of internal duct liners if the fiber duct work is in accordance with the current revision of the SMACNA construction standard on fibrous glass ducts Fibrous duct work and internal acoustical lining mustbe NFPA Class 1 air ducts when tested per UL Standard 181 for Class 1 ducts Horizontal to Down flow Conversion The unit is shipped ready for horizontal duct connections If down flow ducts are required the unit must be converted following the steps below for both the supply and return ducts 1 Locate the duct cap inside the duct openings and remove the screw holding it in place 2 Lift the cap out of the unit The cap can be pushed up from the bottom by reaching through the fork slot 3 Cover the horizontal duct opening with the cap The insulation will be on the indoor side 4 Fasten the cover with screws and seal to prevent air leakage Clearance The Q4 Series is approved for 0 inch clearance ELECTRICAL WIRING General Electrical power wiring must be made in accordance with all applicable local codes and ordinances and with the current revision of the Nationa
17. inals and to the unit s low voltage pigtails as shown in Figure 10 A system wiring diagram is also provided on the inside of the control panel cover and in Figure 8 of these installation instructions 4 Secure sub base or thermostat to the wall using screws provided with the thermostat 5 If sub base is used install the correct thermostat housing to sub base 6 Refer to thermostat instruction sheet for complete detailed mounting information Defrost Cycle Timer The defrost cycle timer controls the time interval of the hot gas defrost after the defrost sensor closes It is located in the lower left corner of the defrost control board on the low voltage side of the control box Three 9 interval settings are available 30 minutes 60 minutes and 90 minutes Time setting selection is dependent on the climate where the unit is being installed Example 1 Dry climate of Southern Arizona 90 minute setting is recommended Example 2 Washington recommended Moist climate of Seattle A 30 minute setting is Tosetthe cycle timer place the timing pin on the defrost control board to the desired time interval post Note All units are shipped from the factory with the default time setting of 30 minutes START UP AND SYSTEM CHECK Pre Start Check List Verify that the unit is level to allow proper condensate drainage Verify that there is free airflow to and from the outdoor coil and that all clearance require
18. ing blower speed lead on terminal 46 and the desired cooling blower speed lead on terminal 4 of the blower relay Use another wire tie field supplied to bundle the remaining motor leads N CAUTION To avoid personal injury or property damage make certain that the motor leads cannot come into contact with any uninsulated metal components of the unit Check all factory wiring per the unit wiring diagram and inspect the factory wiring connections to be sure none loosened during shipping or installation Low Voltage Connections Room Thermostat Several options are avail able for a room thermostat depending on the accessories installed with the unit The avail able thermostats recommended for use with the Q4 units are listed with the accessories in Table 5 Select a thermostat which operates in con junction with the installed accessories The thermostat should be mounted about five feet above the ground on an inside wall The ther mostat should be kept away from drafts slam ming doors lamps direct sunlight or in line with the supply air flow To install the thermostat 1 Position the sub base on an inside wall and mark the mounting holes and thermostat cable openings 2 Cut out the cable opening and route the thermostat cable from the unit s low voltage compartment to the thermostat location The thermostat cable is supplied by the installer 3 Connect the cable leads to the sub base or thermostat term
19. l Electric Code NFPA 70 or in Canada CSA 22 1 Canadian Electrical Code Part 1 If any of the original wire as supplied with the unit must be replaced it must be replaced with material of the same gage and temperature rating Line Voltage Before proceeding with the electrical connections make certain that the voltage frequency and phase of the supply source are the same as those specified on the unit rating plate Also verify that the service provided by the utility is sufficient to handle the additional load imposed by this equipment N WARNING To avoid the risk of electrical shock personal injury or death disconnect all electrical power to the unit before performing any maintenance or service The unit may have more than one electrical power supply See Figure 8 or the unit wiring label for proper high and low voltage wiring Make all electrical connections in accordance with all applicable codes and ordinances Figure 6 Ground Level Installation Figure 7 Roof Top Installation Use a separate branch electrical circuit for this unit A means of electrical disconnect must be located within sight of and readily accessibility to the unit Internally mounted circuit breakers are available as field installed options These circuit breakers can be used as an electrical disconnect Provide power supply or supplies for the unit in accordance with the unit wirin
20. ments are met e Verify that the duct workis sealed to prevent air leakage Verify that the line voltage power leads are securely connected and the unit is properly grounded Verify thatthe low voltage wires are securely connected to the correct leads on the low voltage terminal strip Q4SA 048D amp Q4SA 060D Blower Wiring Blower Speed Medium Blower Leads Low Red BRT3 Black BR T6 Gray BR T4 Blue TB T1 Violet TB T1 BR T Blower Relay Terminal number TB T Terminal Block Terminal number High TB T2 BR T3 BR T6 BR T5 TB T1 Q4SA 036D Blower Wiring Blower Speed Medium Blower Leads Low Red BR T3 Black BR T6 Gray BR T4 Blue TB T1 TB T1 Violet BR T5 BR T5 Figure 9 Motor Lead Connection High TB T2 BR T3 BR T4 10 Verify that all exterior panels are replaced and securely fastened Verify that the outdoor fan turns freely Verify that the power supply branch circuit overcurrent protection is sized properly e Verify thatthe thermostatis wired correctly The thermostat function switch should be set to Off and the thermostat fan switch should be set to Auto Start Up Procedure Close all electrical disconnects to energize the system N WARNING If the unit is equipped with a crankcase heater allow 24 hours prior to continuing the start up procedures to allow for heating of the refrigerant compressor crankcase Failure to comply m
21. rforming any maintenance or service The unitmay have more than one electrical supply Refrigerant Charging The Q4 packaged heat pumps are fully charged atthe factory The system refrigerant charge can be checked and adjusted through the service ports provided in the front panel Use only gauge lines which have a Schrader depression device present to actuate the valve Refrigerant charging must be done by qualified personnel familiar with safe and environmentally responsible refrigerant handling procedures N WARNING The Q4 Single Packaged Heat Pumps are shipped fully charged and ready for installation Whena systemis installed according to these instructions no refrigerant charging is required If repairs make it necessary for evacuation and charging it should only be done by qualified trained personnel thoroughly familiar with this equipment Some local codes require licensed installation service personnel to service this type of equipment Under no circumstances should the owner attempt to install and or service this equipment Failure to comply with this warning could result in property damage personal injury or death N CAUTION Use care when removing parts from this unit Personal injury can result from sharp metal edges present in all equipment of sheet metal construction Routine Maintenance Proper maintenance is important to achieve optimum performance from the heat pump The ability
22. rmostats will include a system switch position termed EM HT or AUX HT etc This is a back up heating mode to be used only if there is a suspected problem With the system switch set to EM HT etc the compressor and outdoor fan will be locked off and supplemental heat electric resistance heating will be used as a source of heat Sustained use of electric resistance heat in place of the heat pump will result in an increase in electric utility costs 4 SYSTEM SWITCH FAN SWITCH TEMPERATURE SCALES TEMPERATURE SELECTOR Figure 1 Typical Thermostat Defrost During cold weather heating operation the outdoor unit will develop a coating of snow and ice on the heat transfer coil This is normal andthe unit will periodically defrost itself During the defrost cycle the outdoor fan will stop while the compressor continues to run and heat the outdoor coil causing the snow and ice to melt During defrost there may be some steam rise from the outdoor unit as the warm coil causes some melted frost to evaporate SPECIFICATIONS Model Series Q4 Single Package Heat Pumps are designed for outdoor rooftop or ground level slab installations The units are shipped ready for horizontal duct connections and are easily converted for down flow applications Cooling Thermostat Furance Thermostat Double Throw Double Pole Switch To Heat Pump To Furance Figure 2 Thermostat Interlock System All models
23. s once again to absorb more heat It is the sole responsibility of the homeowner to make certain that heat pump has been correctly set up and adjusted to operate properly NORDYNE warrants the heat pump to be free from defects in material or workmanship for a period of one year A warranty certificate with full details is included with the heat pump How ever NORDYNE will not be responsible for any costs found necessary to correct problems due to improper setup improper installation adjust ments improper operating procedure on the part of the user etc Some specific examples of service calls which are not included in the limited warranty are 1 Correcting wiring problems in the electrical circuit supplying the heat pump 2 Resetting circuit breakers or other switches 3 Adjusting or calibrating of thermostat To avoid misunderstandings at a later date carefully review these responsibilities with your dealer or service company The heat pump system will heat and cool your home and save your energy dollars During the summer a heat pump cools a house by absorbing heat from within the house and exhausting it outdoors During the winter a heat pump heats a house by absorbing heat outdoors and exhausting it indoors This is an efficient heating means because you pay for moving heat from outdoors to indoors but do not pay to generate the heat 3 OPERATING INSTRUCTIONS To Operate Your Heat Pump For Cooling
24. ssory Kits 8l weibeig 8 4 Convertible Packaged Heat Pump 460 Volt Three Phase NOTES Disconnect all power before servicing 1 Couper le courant avant de faire letretien 2 Employez uniquement des conducteurs On units with no pressure switch an 1 2 For supply connections use copper conductors only 3 If any of the original wire as supplied with the furnace must be replaced it must be replaced with wiring material having a temperature rating of at least 105 C For supply wire ampacities and overcurrent protection see unit rating plate el To Indoor Thermostat CONTROL LOGIC Defrost Control Board BR BLOWER RELAY cc COMPRESSOR CONTACTOR CCH CRANKCASE HEATER IF EQUIPPED DFT DEFROST THERMOSTAT OUTDOOR THERMOSTAT OPTIONAL RVS REVERSING VALVE SOLENOID PS PRESSURE SWITCH SELECT MODELS ODFR OUTDOOR FAN RELAY Be INDICATES PLUG CONNECTION LETTER INDICATES WHICH PLUG 1 6 INDICATES PIN NUMBER en cuivre To 460 VAC Power Supply Li 1 CCH 1 If Equipped 1 1 1 1 YELLOW Ground On Location Provided Inside Compressor Terminal Detrost Control Board Low Voitage Connections Switch orange wire will connect To Pin 6 and 1 Discharge Air Sensor RED 3 To Indoor Thermostat High Pressure Select Models Economizer LA Accessory Plug EI YELLOW BLACK
25. ted values indicates a refrigerant undercharge Buljooy 29H 9L Duioo vsro ee eiqer Q4SA 060 OUTDOOR TEMPERATURE F Note All pressures are listed in psig and all temperatures in deg F OCO Shaded Boxes indicate flooded conditions Rated Design Values Suction Pressure will be lower than design value if indoor air 70 75 80 85 90 95 100 105 Pres Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp Pres Temp 68 192 157 70 193 165 208 164 72 194 182 210 172 74 195 199 211 76 195 216 213 78 214 so 295 188 309 185 82 298 197 313 192 84 300 206 315 201 86 303 216 318 210 320 219 flow entering dry bulb or entering wet bulb temperatures are lower than design Discharge temperatures greater than charted values indicates a refrigerant undercharge 29H Q4 ACCESSORIES Circuit Breaker Kit Single Phase 913554 Circuit Breaker Kit Three Phase 913740 4 pole single circuit adapter kit Single Phase Units Onl 913350 6 pole single circuit adapter kit Single Phase Units Onl 913556 Descrip
26. tion Part Number Roof Curb 8 Roof Curb 14 Manual Fresh Air Damper 547832 Economizer downflow Supply return transition 16 Supply return transition 18 547835 Concentric diffuser flush 16 Concentric diffuser flush 18 547837 Concentric diffuser step down 16 Concentric diffuser step down 18 Motorized Fresh Air Damper 547840 Economizer horizontal special order Power Exhaust downflow economizer special order Power Exhaust horizontal economizer special order 547843 Hail guard 30x76 special order see Note 1 Hail guard 34x76 special order see Note 2 Filter Kit Downflow See Note 1 547887 Filter Kit Downflow See Note 2 Filter Rack Downflow 547885 T stat HP 2 stage htg 1 stage cool auto M brand T stat HP 2 stage htg 1 stage cool auto I brand T stat HP 2 stage htg 1 stage cool manual M brand 912932 T stat HP 2 stage htg 1 stage cool manual 1 brand T stat AC 2 stage htg 1 stage cool T P F brand T stat HP 2 stage htg 1 stage cool T P F brand 917005 12 Flex duct adapter kit 14 Flex duct adapter kit 913812 12 Flex duct adapter kit amp P Trap 14 Flex duct adapter kit amp P Trap Universal Hard Start Kit 912933 Low Pressure Switch Kit High Pressure Switch Kit Low Ambient Kit 913770 Outdoor Thermostat Kit 913852 913554 913556 Note 1 Q4SA 036 Note 2 Q4SA 048 Q4SA 060 Q4SC 036 Note 3 Q4SC 048K Q4SC 060K Table 4 Field Installed Acce
27. tions included with it Locate the unit according to local building codes and ordinances The curb must be level to insure proper condensate drainage See Figure 7 The roof must be capable of handling the weight of the unit See Figure 3 for unit weights Reinforce the roof if required AIR DUCTS This unit is designed only for use with a supply and return duct Air ducts should be installed in accordance with the standards of the National Fire Protection Association Standard for Installation of Air Conditioning Systems NFPA 90A Standard for Installation of Residence Type Warm Air Heating and Air Conditioning Systems NFPA 90B and all applicable local codes Design the duct work according to methods described by the National Warm Air Heating and Air Conditioning Association ACCA The ducts must be properly sized not to exceed 2 w c pressure drop at 400 scfm per nominal ton of cooling capacity Duct work should be attached directly to the unit flanges for horizontal applications On roof curb installations the ducts must be attached to the curb hangers not the unit Unconditioned Spaces All duct work passing through unconditioned space must be properly insulated to minimize duct losses and prevent condensation Use insulation with an outer vapor barrier Refer to local codes for insulation material requirements Acoustical Duct Work Certain installations may require the use of acoustical lining inside t
28. to properly perform maintenance onthis equipment requires certain mechanical skills and tools If you do not possess these skills contact your dealer for maintenance Consult your local dealer about the availability of maintenance contracts At a minimum routine maintenance should include the following 1 Inspect and clean or replace air filters at the beginning of each heating and cooling season or more frequently if required 2 Inspect the condensate drain and outdoor coil atthe beginning of each cooling season Remove any debris Clean the outdoor coil and louvers as necessary using a mild detergent and water Rinse thoroughly with water 3 Inspect the electrical connections for tightness at the beginning of each heating and cooling season Service as necessary N CAUTION The unit should never be operated without a filter in the return air system Replace disposable filters with the same type and size 11 ECONOMIZER PLUG 1 1 O1 I C9 1 Optional Check INDOOR Thermostat l Optional Check Instructions 0 Thermostat Instructions ECONOMIZER PLUG ni OJN On I INDOOR THERMOSTAT DEFROST THERMOSTAT SUB BASE BOARD Typical Wiring Field Supplied for 1 Stage Cool 1 Stage Heat SUB BASE Figure 10 Typical Thermostat Connection FR
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