User Manual D1NZ 24
Contents
1. A WARNING PRIOR TO ANY OF THE FOLLOWING MAINTE NANCE PROCEDURES SHUT OFF ALL POWER TO THE UNIT TO AVOID PERSONAL INJURY Periodic maintenance consists of changing or cleaning filters Under some conditions the main burners should be cleaned LUBRICATION The indoor blower motor outdoor fan motor and venter motor are permanently lubricated and require no maintenance GENERAL MAINTENANCE The manufacturer recommends that the furnace system be inspected once a year by a quali fied service person For proper and safe operation the gas heating section needs air for combustion and ventilation Do not block or obstruct air openings on the unit nor the spacing around the unit Keep the gas heating system area clear and free of combustible materials gasoline and other flam mable vapors and liquids Snow or debris should not be allowed to accumulate in or around the unit Do not permit overhanging structures or shrubs to obstruct condenser air discharge or vent outlet on your unit These provide air for combustion and ventilation FILTER CARE Single phase units are shipped without a filter and is the responsi bility of the installer to secure a fil ter in the return air ductwork or install a Filter Frame Kit 1FF0110 A filter rack and a high velocity fil ters are standard on three phase units Filters must always be used and must be kept clean When filters become dirt laden insuf2. area People give off a consider able amount of heat and moisture in a closed area DO keep drapes and Venetian blinds closed when practical These items provide insulation against heat loss gain DO contact a qualified serviceper son to make repairs or adjustments to your system They have been trained to perform this service Unitary Products Group v 7 PX gt EFFICIENCY RATING Wk CERTIFIED ama C ic Subject to change without notice Printed in U S A Copyright by Unitary Products Group 2003 All rights reserved N y CERTIFIED O T ARN 2000 REGISTR 035 19776 000 B 1003 Supersedes 035 19776 000 A 0903 Unitary 5005 Products York Group Drive Norman OK 73069
3. of the system resumes A WARNING Should overheating occur shut off the manual gas valve external to the appli ance before shutting off the electrical supply a WARNING Flue hood surface and immediate area is designed to operate at high temperatures during the heating cycle Special attention must be given to keep all human contact and debris away from this area VENT OUTLET SCREEN FLUE VENT OUTLET AIR HOOD A WARNING Incorrect installation of the flue vent hood could cause personal injury or property damage COOLING When the thermostat calls for COOL the thermostat signals the compressor and outdoor fan to run After a cool fan on delay timing of 6 seconds the circulating fan is ener gized at cooling speed When the thermostat is satisfied the compressor and outdoor fan is de energized After a cool fan off delay timing of 30 seconds the circulating fan is de energized CIRCULATING FAN When the thermostat calls for FAN the thermostat terminal sig nals the circulating fan to run at the heat speed 2 seconds after the thermostat is energized If a call for HEAT occurs the cir culating fan continues to run at the heat speed If a call for COOL occurs the cir culating fan switches to cool speed after a 4 second delay When the thermostat ends the call for FAN the thermostat is de energized de ene
4. CONTENTS SAFETY INFORMATION SYSTEM OPERATION THERMOSTATS cecanccosceen con c56 HOT SURFACE PILOT IGNITION FOR YOUR SAFETY READ BEFORE OPER AIING emer aranana WHAT TO DO IF YOU SMELL GAS START UP INSTRUCTIONS HEATING SYSTEM cose conossodcdeercesnes SHUTDOWN INSTRUCTION TO TURN OFF GAS TO APPLIANCE SECURE OWNER S APPROVAL MAINTENANCE 5 NORMAL MAINTENANCE LUBRICATION aa eect soseee GENERAL MAINTENANCE RIETERIGARER ene e voor racine COMBUSTION AIR DISCHARGE CLEANING FLUE PASSAGES AND HEATING ELEMENTS REGISTERS a e se sec cerry TROUBLESHOOTING BEFORE CALLING A SERVICE PERSON cane ees REPLACEMENT PARTS SOME EFFICIENCY DO S AND DONT S YORK Heating and Air Conditioning USER S MAINTENANCE and SERVICE INFORMATION MANUAL SINGLE PACKAGE AIR CONDITIONER GAS ELECTRIC The manufacturer recommends that the User read all sections of this manual and keep the manual for future reference AWARNING FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury death or prop erty damage Do not store or use gasoline or other flam mable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS e Do not try to light any applian
5. ES AND HEATING ELEMENTS With proper combustion adjust ment the heating element of a gas fired furnace will seldom need cleaning If the element should become sooted it can be cleaned as follows 1 Remove the burner assembly as outlined in BURNER INSTRUC TIONS 2 Remove the screws securing the restrictor plate to the tube sheet 3 Using a wire brush on a flexible wand brush out the inside of each heat exchanger from the burner inlet and flue outlet ends 4 Brush out the inside of the restrictor plate to the tube sheet 5 If soot build up is particularly bad remove the vent motor and clean the wheel and housing 6 After brushing is complete blow all brushed areas with air or nitrogen Vacuum as needed 7 Replace parts in the order they were removed in steps 1 through 3 REGISTERS Supply air and return air registers must be open when the unit is in operation Furniture must not block airflow in or out of the registers TABLE 1 GAS RATE CUBIC FEET PER HOUR SECONDS FOR ONE SIZE OF TEST DIAL REV 1 2 CU FT 1 CU FT 10 180 360 12 150 300 14 129 257 16 113 225 18 100 200 20 80 180 22 82 164 24 75 150 26 69 138 28 64 129 30 60 120 32 56 113 34 53 106 36 50 100 38 47 95 40 45 90 42 43 86 44 41 82 46 39 78 48 37 75 50 36 72 52 35 69 54 34 67 56 32 64 58 31 62 60 30 60 1 EXAMPLE By actual measur
6. air conditioning in the summer and gas heating in the winter all from a single unit SYSTEM OPERATION THERMOSTATS Set your thermostat for either heat ing or cooling then set it for the desired temperature DO NOT MOVE THE THERMOSTAT RAP IDLY ON AND OFF OR BACK AND FORTH FROM HEAT TO COOL THIS COULD DAMAGE YOUR EQUIPMENT Always allow at least 5 minutes between changes Find the tem perature that is most comfortable to you and then LEAVE YOUR THERMOSTAT ALONE Excep tion is for night or vacation set back to conserve energy Manually moving the thermostat up or down will not speed up tempera ture changes in your rooms This only causes the thermostat switch to function at your command rather than responding to room tempera ture Heat generated by devices other than the furnace may interfere with thermostat performance There fore lamps radios television sets etc should not be placed near the thermostat HOT SURFACE PILOT IGNITION DEVICE This unit is equipped with a hot sur face pilot ignition device The con trol is designed to automatically light the burner each time the ther mostat calls for heat A CAUTION Do not attempt to manu ally light the burners Per sonal injury could result HEATING When the thermostat calls for HEAT the thermostat terminal W is energized the control board checks for a open pressure switch Unitary Product
7. ce e Do not touch any electrical switch do not use any phone in your building e Leave the building immediately e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e Ifyou cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier Oy 035 19776 000 B 1003 035 19776 000 B 1003 eee a3 On your purchase of one of our Single Package Air Conditioning Units This energy efficient system has been precision designed manufactured of high quality materials and has passed many vigorous inspections and tests to ensure years of satis factory service Please read this manual thoroughly It will help you understand your system tell you how to operate it efficiently and how to obtain the greatest measure of comfort at the lowest operating expense We appreciate your interest in our products and your decision to purchase our Single Package Unit Enjoy your comfort SAFETY INFORMATION FOR YOUR SAFETY e Make sure that the furnace area is clear and free of com bustible materials gasoline and other flammable vapors and liquids e Be sure the furnace is free and clear of insulating material Examine the installation of the furnace for addition of insula tion Some insulations are combustible e For proper operation of this fur nace air for combustion and v
8. e technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water START UP INSTRUCTIONS HEATING SYSTEM NOTE See General instructions for Start up and Shutdown of your gas heating system 1 STOP Read the safety informa tion 2 Set the thermostat to the lowest setting Make sure all electrical power to the furnace is OFF This appliance has a device which automatically lights the pilot and inturn lights the burn ers Remove burner access panel by removing screws and lifting panel out Push the manual gas switch to the OFF position Wait five 5 minutes to clear out any gas If you then smell gas STOP Follow step A in the safety information If you don t smell gas go to next step Push the manual gas switch to the ON position Replace the control access panel 10 Turn on all electrical power to the appliance 11 Set the thermostat to the desired setting 12 If the appliance will not operate follow the instruction To Turn OFF Gas To Application and call your service technician or gas supplier SHUTDOWN INSTRUCTION TO TURN OFF GAS TO APPLIANCE A CAUTION Should overheating occur or the gas supply fail to shut off shut off the manual gas valve to the furnace before shutting off the electrical supply 1 Set the thermostat to t
9. ement it takes 38 seconds for the hand on the 1 cubic foot dial to make a revolution with just a 100 000 BTUH furnace running Using this information locate 28 sec onds in the first column of the table Read across to the column headed 1 Cubic Foot where you will see that 95 cubic feet of gas per hour are consumed by the furnace at that rate Multiply 95 x 1050 the BTU rating of the gas obtained from the local gas company The result is 99 750 BTUH which is close to the 100 000 BTUH rating of the furnace TROUBLESHOOTING BEFORE CALLING A SERVICE PERSON A Check thermostat setting and insure thermostat is calling for heat or cooling B Check thermostat for lint dust etc C Check fuses or circuit break ers D Check filters for excessive dust accumulation and or restric tion REPLACEMENT PARTS REPLACEMENT RESPECTIVE PARTS FORM NO MODEL NO SINGLE PACKAGE AIR CONDITIONER GAS ELECTRIC 12 13 SEER 035 19764 000 D NZ024 060 All forms referenced in this manual may be ordered from Standard Register Toll Free 877 318 9675 Fax 877 379 7920 SOME EFFICIENCY DO S AND DON TS DON T heat or cool unused areas Reduce supply and return air flow to a minimum in areas which are not living spaces storage rooms garaged basements etc Unitary Products Group 035 19776 000 B 1003 DON T be a thermostat jiggler Moving your thermostat setting will not make your system heat o
10. entilation is required Make sure that these openings are not obstructed For lighting or shutting down this furnace refer to the light ing instructions provided adja cent to the burners and also located in this manual e A blocked vent roll out switch is provided in the burner com partment This switch is a man ual reset If the furnace fails to operate contact a qualified service agency e Should the gas supply fail to shut off or if overheating occurs shut off the gas valve to the furnace before shutting off the electrical supply Then call a qualified service techni cian Do not use this furnace if any part has been under water A flood damaged furnace is extremely dangerous Attempts to use the furnace can result in fire or explosion A qualified service agency should be con tacted to inspect the furnace and to replace all gas controls control system parts electrical parts that have been wet or the furnace if deemed necessary e Determine the integrity of the installation regarding the flue gas vent the return and supply air duct the equipment is well supported and there are no signs of deterioration The manufacturer recommends that main burner ignition de vice and controls are inspected by a qualified furnace techni cian before each heating sea son This gas electric heating cooling unit is designed for outdoor use and can be installed anywhere from grade level to the roof Elec tric
11. ficient air will be delivered by the blower decreasing your units efficiency and increasing operating costs and wear and tear on the unit and con trols OUTDOOR COIL Dirt should not be allowed to accu mulate on the outdoor coil surface or other parts in the air circuit Cleaning should be as often as necessary to keep the coil clean Use a brush vacuum cleaner attachment or other suitable means If water is used to clean the coil be sure that the power to the unit is shut off prior to cleaning A CAUTION EXERCISE CARE WHEN CLEANING THE COIL SO THAT THE COIL FINS ARE NOT DAM AGED DO NOT PERMIT THE HOT CONDENSER AIR DISCHARGE TO BE OBSTRUCTED BY OVERHANGING STRUCTURES OR SHRUBS BURNER At the beginning of each heating season make a visual check of the main burner flame If it is not possi ble to adjust for the proper flame the burner may need cleaning TO CLEAN BURNERS Remove them from the furnace as explained in Burner Instructions Clean burners with hot water applied along top of the burner COMBUSTION AIR DISCHARGE Visually inspect discharge outlet periodically to insure soot and dirt buildup is not excessive If neces sary clean to maintain adequate combustion air discharge The manufacturer recommends that the furnace system be inspected once a year by a quali fied serviceperson Unitary Products Group 035 19776 000 B 1003 CLEANING FLUE PASSAG
12. he lowest setting 2 w gt 5 Turn off all electrical power to the appliance if service is to be per formed Remove burner access panel by removing screws and lifting panel out Push the manual gas switch to the OFF position MANUAL GAS SWITCH SHOWN IN OFF POSITION Replace the control access panel A WARNING ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in dangerous oper ation serious injury death or property dam age Improper servicing could result in dangerous oper ation serious injury death or property dam age e Before servicing discon nect all electrical power to furnace e When servicing controls label all wires prior to dis connecting Reconnect wires correctly Verify proper operation after servicing Unitary Products Group 035 19776 000 B 1003 SECURE OWNER S APPROVAL When the system is functioning properly secure the owner s approval Show the owner the loca tion of all disconnect switches and the thermostat Teach owner how to start and stop the unit and how to adjust temperature settings within the limitations of the system Advise owner that the flue exhaust hood surface and the immediate area will experience high tempera tures during the heating cycle All unauthorized personnel and debris must be kept away from this area MAINTENANCE NORMAL MAINTENANCE
13. r cool any faster Adjust your thermostat to a comfortable setting and leave it there DON T restrict air circulation Plac ing furniture rugs etc in such a way that they interfere with air vents will make your system work harder to achieve a comfortable temperature level This requires more energy which means greater cost to you DON T heat or cool when you are away If you are going to be away for a day or more re adjust your thermostat accordingly Your furni ture is far less demanding than you are when it comes to comfort lev els However don t expect the sys tem to restore comfort conditions immediately upon returning home It will take a little time DON T locate lamps or other heat producing appliances radios TV s heaters etc near your thermostat The heat from these items will give your thermostat false information about the temperature in the room DO select a comfortable thermostat setting but keep in mind that mod eration in temperature selection will save energy DO turn on your kitchen exhaust fan when cooking and your bath room exhaust fan when showering Also make sure your clothes dryer is properly vented If these items are neglected an excess heat and humidity condition may be created causing your air conditioning sys tem to run longer DO set your thermostat a few degrees lower than normal several hours before entertaining a large group of people in a relatively small
14. rgizing the circu lating fan INPUT The correct heat capacity of the fur nace is regulated by the burner ori fices and the gas pressure The proper orifices are furnished but the gas pressure regulator must be adjusted by the installing service man or gas company This is a one time adjustment FOR YOUR SAFETY READ BEFORE OPERATING A WARNING If you do not follow these instructions exactly a fire or explosion may result causing property dam age personal injury or loss of life Unitary Products Group 035 19776 000 B 1003 A BEFORE OPERATING smell all around the appliance area for gas Be sure to smell around the base of the unit because some gas is heavier than air and will settle in the area WHAT TO DO IF YOU SMELL GAS e Do not try to light any appli ance Do not touch any electrical switch Do not use any phone in your building Immediately call your gas sup plier from a neighbor s phone Follow the gas supplier s instructions e If you cannot reach your gas supplier call the fire depart ment A Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service technician Force or attempted repair may result in a fire or explo sion B Donotuse this appliance if any part has been under water Immediately call a qualified servic
15. s Group 035 19776 000 B 1003 PS and closed limit switches then energizes the combustion air blower After combustion airflow is estab lished the air proving pressure switch PS closes the hot surface ignitor is energized and the pilot valve opens igniting the pilot flame The flame rod senses a flame and de energizes the ignitor opening the main gas valve and the main burners light 30 seconds after the main burners light the circulating fan is energized at the heating speed When the thermostat is satisfied terminal W is de energized de energizing the ignition system clos ing the gas valve After a 5 second postpurge timing period the combustion air blower is de energized and the heat fan off timing begins When this field selected heat fan off timing is completed the circulat ing fan is de energized If the limit switch LS auxiliary limit switch ALS or the rollout switch RS open the ignition sys tem is de energized and the gas valve closes The combustion blower and the circulating fan are energized The combustion blower remains energized for the 5 second post purge timing period if the limit switch LS auxiliary limit switch ALS or the rollout switch RS contacts reset the rollout RS and auxiliary limit switch ALS must be manually reset The circulating fan remains energized for the selected heat delay off timing Normal operation
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