Installation Instructions
Contents
1. 6 Evaporator Coil Freeze Protection cccccsscccceessecceeeesneeceeceneeeeeceseeeeceesaeeceseeaeecessesaaeeesesaeeeeseeeeeeeseiaeeeesnneeeened 6 TT CONNEC ONS rinne P 6 Pump EXerGiser maneira a a E E E E Eaa 6 I ilispervers iueol MR 6 Staimless steel Hoat SWiteDis sive ein eri er eee ERR e ESSE VERG RR EHE R ERN repre ST oa eundo rp ou tn ege uen gore RN SPUR RR NT 6 PRODUCT DESCRIPTION coon RIND 6 clou 6 ls zunpAelter pU ELLEN 6 Feaniand MOtor PEE 7 Circulating PUMP serri r etree rere pret re ee ec re er eee re epee ene ee 7 CHECK Val T 7 PIM IG Kit P M 7 Thermostat oon HIC RENENUNDHE Meu IIMEIMIMUIIMUI M 7 EQUIPMENT SIZING AND SELECTION esee eese eoi nio na eire eie ee io anoo po to eno sore evitos To ria ae o evo Ve o aep ede aio 7 ld c 7 Heat Iboss Heat Galeraren RI IA e ae err ere eH eH P Scanian lids peu eue ets e E re deve boe eua 7 Air Handler Selection RRRRRRRRRRRRRRR e e 7 ENSTALLA TION E ania an aie rea PERRO REA 7 Aan Handler Mounting cis score eer re e VE Dr EO REO ERR EE ERR E E i rre ra e re eo ra Ya ds 7 DUCIWORK d2. 8 Risk Ob AUDI M tec E ver cases duacacnsdtecude deste waehivuevacaes teedesactuneaeadramncvarsdeaceadhereccaereveccomunrecets 8 AJ COMI ODM asc eect cate cates E E ae aaieves satin ven seialae ura aet ever E 8 Attic amid Crawl SPACES c aE 8 ELECTRIC AD P X 8 Thermostat roenn E E E satssustaceassauaseets E tactsvectitsaveei E uaa autos MIEL 8 h midistatssisicisanininnna nanena a E A E A T eeaanteeaa es 9 START UP PROCEDURE wicscscacscsnscessucasssiessanasiareiausvaieiainncuassensaiensiensuansususeenssansiacansiaenavansunsscausmonaunmauenameunnciees 9 SERVICE AND NEA DIN TEIN A ING Bessie seis inicasivsih ances suits nds bina odik wate ER dulce DUK KERN EUN CUR URN GR NM Ku nra YR xa a 9 FUG ostro tom tierisiadiie eere PM E TM MTM E DM EIER 9 Du ct cleanitig 2 TERRIER RENE NIE NINE RU MIN HIIS 9 SOL 9 AA CONGMONINE COM PE 9 Into fv PTT 10 PUMP E treie aea eE E AEE E E EEEO E EEE E A EEE E aN es 10 TROUBLESHOOTING iiccsceiseniien nn Y ike end ron le deri iei RYDER KORR RR 10 Thermostat Call EFtOr te e RE REF Ret h tore Ro Resa bee rre ERI H RA VEE E EF HPL ante te A E RE VE re E PROEEUS 10 Pump doesnot TUN REM 10 Pump is noisy at Start Up RRRRRRRRR ee 10 Water heater T amp P is weeping ssesssssssssseseeeeeeenee nennen enne nn enne s nter sen nnn ns eser sienten eerte 10 I
3. of the existing screw holes in the cabinet When the existing screw is too short for securing a mounting strap a longer screw can be used provided care is ECRW Install TM ECRW Series Air Handler Installation Instructions E I Fe logix taken not to damage any internal components When fastening straps using screws other than those supplied with the cabinet special care should be taken in the vicinity of the coil to avoid tube puncture The cabinet is designed so that the return air can be located on either side of the cabinet through the bottom of the cabinet or from the back Position the filter rack so that the filter is readily accessible Install the air handler with the door firmly screwed in place to make sure the cabinet remains square Provide at least 2 feet 0 75 metres of service clearance in front of the access panel of the air handler Zero clearance is acceptable on all other faces DUCTWORK Duct connections at the air handler should be labeled for future reference eg basement main upstairs Supply trunks may be square or round SEAL all joints and seams with metal tape or sealing compound Locate outlets at least 6 inches from outside walls or window coverings Ductwork installed in unheated spaces such as attics must be installed between the insulation and the heated space Provide at least R 12 of insulation above ducts If cooling is required the branch and trunk lines must be insulated a
4. pump Is there an installation manual and controls user manual for the home owner Is the unit accessible Are there clearances for service and component replacement Is the return duct drop acoustically lined at least 6 ft of the return duct drop must be lined Is the filter cover in place Is a clean filter in place Is the supplied filter rack installed Has the electronic controller been properly configured as per instructions in the controls user manual REV 140818 Page 3 ECRW Install TM a ECRW series Air Handler Installation Instructions us ologix TYPICAL PLUMBING CONNECTIONS i AIR HANDLER R HANDLE FACE PIPING WN O AVOID AIR ENTRAINME l N IN SPACE HEATING m FACE PIPING DOWN 7 a ee a Y AVOID AIR ENTRAINMENT IN SPACE HEATING P z TANK TYPE WATER HEATER TANK TYPE WATER HEATER WITH SID
5. E C ECTIUNS WITHOUT SIDE CONNECTIONS REV 140818 Page 4 ECRW Install TM a ECRW series Air Handler Installation Instructions us ologix EQUIPMENT SPECIFICATIONS Physical Properties MODEL Dimensions W x D x H inches Supply Air Opening WxD inches Return Air Opening WxD inches Filter Rack Size WxD inches ECRW33 25 x23 x16 Adjustable 20 x8 16 x20 Water inlet and outlet V Coil size length x width x rows 13x20x2 Shipping weight pounds 60 115 1 60 6 3 7 7 15 1 3 Power V Ph Hz Total Unit FLA Minimum Ampacity Max over current max fuse size Amps Motor Horsepower PERFORMANCE Specifications MODEL Heating Capacity Btu h 100F water 14 000 Heating Capacity Btu h 110F water 18 600 Heating Capacity Btu h 120F water 23 200 Heating Capacity Btu h 130F water 27 900 Heating Capacity Btu h 140F water 33 000 Heating Capacity Btu h 160F water 42 900 Heating Capacity Btu h 180F water 52 700 Cooling Capacity High Tons 2 0 Cooling Capacity Medium Tons 1 5 Cooling Capacity Low Tons 1 0 Heating capacities are based on 70F return air high fan speed For medium speed de rate capacity by 20 For low speed de rate capacity by 40 Air handler can deliver the programmed airflow at any static pressure below the maximum external static pressure
6. Gc sC Cologix 45 Cowansview Road Phone 855 658 4330 Cambridge Ontario N1R 7L2 www ecologix ca Fax 855 658 9384 info ecologix ca Installation Instructions Reliance Home Comfort ECRW Series Air Handler Very low profile Hot water coil External pump DX cooling coil Build in filter rack ECM high efficiency motor ECOLOGIX HEATING TECHNOLOGIES INC 45 Cowansview Road Cambridge Ontario NIR 7L2 Phone 519 658 4330 Fax 519 658 9384 info ecologix ca www ecologix ca Copyright C 2014 Ecologix Heating Technologies Inc All Rights Reserved This manual may not be reproduced in whole or part by any means without prior written consent from Ecologix Heating Technologies Inc Ecologix and the Ecologix logo are Trademarks of Ecologix Heating Technologies Inc TM a A ECRW series Air Handler Installation Instructions c ologix Table of Contents CHECKLIST FOR THE INSTALLER vivisssicsccscccecsecsecsscscsevcsstcsecsscssbsccsessssoussessuesseessecessccsecessostscesscsssosssrsescessed 3 TYPICAL PLUMBING CONNECT IONG ccssccsssssssssccssscccsssccssscccssscsesscccsssccessecssssccsssccsssscssssceseseesssssesones 4 EQUIPMENT SPECIPICATEONSN 2 ccioeccetroi ndi ene nieder n x eri i i d n RR RR eu 5 INTRODUCTION o tke c C 6 FEATURES T 6 Rotary speed selector knobs II ee ri ta Pe epi eere dee si dud devi gene ape durs deed eu ede e ducacedidudbaisiceceess 6 NUI M
7. REV140818 Page 5 ECRW Install TM ECRW Series Air Handler Installation Instructions E I Fee logix INTRODUCTION The ECRW series air handler is designed for use in combination space and water heating systems Combo Systems Combo heating systems use the home s water heater to provide both the space heating Features The ECRW air handler offers many unique features that set them apart ROTARY SPEED SELECTOR KNOBS The control has a selector knob for each speed heating cooling continuous run The knobs are colour coded and labelled for easy identification Each mode speed is independently selectable directly from the control board SOFT START This feature starts the fan slowly and quietly rather than a large thump common in some furnaces and air handlers EVAPORATOR COIL FREEZE PROTECTION If the evaporator coil air temperature drops outside of the expected operating range this indicates a potential evaporator coil freeze condition Coil freezing can lead to slugging liquid refrigerant going back to the compressor which will damage the compressor All ECRW series air handlers come equipped with a sensor which will respond by shutting off the outdoor cooling unit to allow the system to warm up Note that PRODUCT DESCRIPTION CABINET All cabinets have a tough durable low maintenance painted finish Cabinet dimensions are designed to provide maximum installation flexibility Refer to installation r
8. ctions E I Fee logix FAN AND MOTOR All fans are wide body dynamically balanced for extra quiet operation Multi directional sleeve bearing motors allow mounting in any direction for maximum installation flexibility CIRCULATING PUMP The circulating pump is matched for maximum performance Air handlers come with internally mounted pumps for ease of installation Air handlers can be special ordered with external field installed pumps when it is desirable to locate the circulator below the air handler such as in attic installations EQUIPMENT SIZING AND SELECTION PROCEDURE 1 Conduct a complete heat loss heat gain calculation Determine inlet water temperature Select Air Handler Determine zones within the space Select outlets per room Determine Duct Layout TDU eR HEAT Loss HEAT GAIN Room by room calculations need to be completed using HRAI ASHRAE or another approved sizing methods AIR HANDLER SELECTION INSTALLATION The installer must adhere strictly to all local and national code requirements pertaining to the installation of this equipment Detailed instructions are shipped with all accessory items and should be followed closely AIR HANDLER MOUNTING The air handler can be installed in any direction Some precautions must be observed for some of the possible REV 140818 Page 7 CHECK VALVE Air handlers come with built in spring loaded check valves located in the outlet of the inte
9. equirements for more details REV 140818 and domestic hot water eliminating the need for a furnace The ECRW has a low profile which makes it ideally suited for air handler replacements above the newer taller high efficiency water heaters where space is at a premium this freeze condition is not normal and may indicate blocked ducts dirty filter or an over sized cooling unit TT CONNECTIONS TT connections are provided for the heating contractor to operate a boiler or external pumps and devices with any heating call Refer to the wiring diagram in the controls user manual for details PUMP EXERCISER The air handler is equipped with a pump exerciser that brings on the pump for 90 seconds every 24 hours to flush any water through the system at least once a day A test button on the control allows for easy verification that the pump exerciser is operating correctly BUILT IN COOLING COIL Integral coil sized for maximum two tons of cooling STAINLESS STEEL FLOAT SWITCH Float switch shuts off air conditioning in case of drain plug to avoid flooding HEATING COILS All heating coils are potable water grade copper suitable for use in plumbing systems No lead solder is used in any component construction All coils and internal piping conform to ASTM B68 or ASTM B88 standards High density aluminum fins provide maximum heat transfer for small coil surface Page 6 ECRW Install TM ECRW Series Air Handler Installation Instru
10. gging dust may foul the coils If this happens replace the filter and carefully vacuum the heating coil The fan may need to be removed to gain access to the face of the heating coil AIR CONDITIONING COIL At the start of each cooling season check the drain connection to the cooling coil to ensure it is free of Page 9 ECRW Install TM ECRW Series Air Handler Installation Instructions E I Fe logix debris Ifa plugged air conditioning coil is suspected call a service technician for testing and cleaning FAN AND MOTOR Check fan for dust once a year If dirty vacuum to remove dust Keeping the fan blades clean will reduce TROUBLESHOOTING THERMOSTAT CALL ERROR If the air handler does not run when thermostat is calling check the status lights to see if the call is being seen by the control and check the error lights to see if there is a thermostat error Thermostat error occurs when a heating and cooling call are simultaneously being received by the control Note that some thermostats have a delay typically five minutes before they will start the air handler in cooling the first time PUMP DOES NOT RUN In areas where hard water is present the pump may stick and fail to run Often closing the isolation valve on the return leg and opening the drain port so that water flows through the pump can free this If this fails to free the pump removal for cleaning or replacement is necessary The daily pump exerc
11. ility to use this product Ecologix is under no legal obligations to rectify including but not limited to lost profits downtime good will damages to or replacement of equipment and property Purchaser assumes all risk and liability of loss damage or injury to purchaser and purchaser s property and to others and their property arising out of the use misuse or inability to use this product VVVVVV REV 140818 Page 11 ECRW Install
12. ired for the life of the equipment REV140818 provided on the control board to toggle between thermostat types Thermostat wires are connected to the control using push button terminal strip inside the air handler electric box HUMIDISTAT Humidistat connection is provided on the control board for switching the humidistat on and off with the heating cycle Do not connect to the Y terminal to drive the humidistat 24 volt circuit See wiring diagram inside unit for details is warming up Using a thermometer measure the temperature of the water as soon as the water heater burner shuts off If the set point temperature is too low or is above 140F 60C reset the tank control run water until the burner starts again and repeat the measurement 5 Turnon the power to the air handler and set up the air flow desired for heating cooling and continuous run speeds This is important to ensure that the correct airflows are used for the equipment as installed 6 Settheroom thermostat for heat to energize the fan and pump If a gurgling sound is present it should subside within one minute If noise is still present after one minute repeat step 3 to purge air as necessary 7 Check pipes for heating to make sure there is flow and feel the pump motor to see if it is running hot COILS Air conditioning and heating coils should not require cleaning if the filter maintenance schedule is adhered to Ifa filter is damaged or collapses from plu
13. iser will help prevent pump sticking PUMP IS NOISY AT START UP Air is present in heating loop If sound has not diminished within minute purge air in accordance with the Start Up procedures If heat source is a water heater check to make sure branch connections for heating loop are horizontal to prevent the collecting of air in the heating loop See the drawing Typical Plumbing Connections at the front of this manual WATER HEATER T amp P IS WEEPING A check valve or back flow preventer may have been installed in the system Some form of pressure relief may be required Options are e Install expansion tank e Install pressure relief valve locate outlet over laundry tub or floor drain e Install combination toilet tank pressure relief valve REV140818 noise and improve the capacity and efficiency of the heating system PUMP The circulating pump is water lubricated and should require no regular maintenance INSUFFICIENT OR NO HEAT e Plugged air filter or coil Refer to Maintenance section for filter care and coil cleaning e Air in heating loop purge system e Inlet and outlet connections to air handler backwards reverse connections e Water heater supply tube dip tube is restricted or damaged check and or replace e Supply water temperature set too low or not calibrated properly check water temperature e Restrictions in heating loop remove restrictions check if valve is stuck isolation valves cou
14. ld be too restrictive or left partially closed after purging or closed valve WATER HEATER SUPPLY TEMP IS UNSTABLE Check water heater setting and temperature sensors for good contact on coil headers COLD WATER AT HOT FAUCET When heat source is a water heater the most probable cause is reverse flow through the heating loop from a stuck check valve repair or replace valve FAN RUNS FOR COOLING BUT NOT HEATING Room thermostat may be connected improperly Refer to Electrical section or wiring schematic on air handler for proper installation HEATING DURING STANDBY MODE Probable cause is thermal siphoning Make sure piping elevation instructions shown in piping drawings have been followed Repair or replace check valve Check elevation of air handler above water heater to see if motorized valve required for positive shut off Page 10 ECRW Install TM a ECRW series Air Handler Installation Instructions us C Iogix Warranty This product is warranted by Ecologix Heating Technologies Inc to be free from defects in materials and workmanship that affect product performance under normal use and maintenance within the applicable periods specified below Replacements furnished will carry only the un expired portion of the original warranty Two Year Parts Ecologix Heating Technologies Inc will provide replacement parts for ANY part that fail within two years of purchase subject to the terms below Five Year Parts Ecologix Hea
15. nd sealed with a vapour barrier prior to applying house insulation RISK OF FREEZING Steps must be taken to prevent the hot water coil from freezing Coils that have failed due to freezing and damage caused by frozen coils are not covered under warranty HRV and Fresh air connections ELECTRICAL Warning Make sure unit is properly grounded Locate air handler on a separate electric circuit All air handlers operate on 115VAC 1ph 60hz line voltage All control circuits are low voltage either 24VAC or 0 10VDC REV 140818 Ifa fresh air duct is required make connection to return air plenum at least 18 inches from filter Insulate all fresh air ducts Fresh air and HRV connections to ductwork can pose a risk of dumping cold air into ductwork during periods of stand by or continuous run Calculate mixed air stream temperatures and provide interlock controls to prevent freezing conditions If an HRV is to be attached to the return ductwork the HRV must be interlocked to the air handler controls to ensure the air handler fan is forced to run if the HRV is in operation This interlock is require for both summer and winter operation AIR CONDITIONING The ECRW series air handler is equipped with an integral coil for cooling The unit is shipped with a flow rater piston sized for 1 5 Tons of cooling using R410a refrigerant Other piston sizes are available For applications where a TX valve is desired the piston can be rem
16. nsufficient or no heat eR DRE IEEE IREE CET EERREE ETE ERL TE LEEEE TERRE CEPR ERE FERE PECES ETE ERE RE TEMERE TEES 10 Water heater supply temp 1s unstable eec reete terre vH HE HH E E Ue rrvR HER EVR Re AVES PE voe la 10 REV140818 Page 2 ECRW Install TM a ECRW Series Air Handler Installation Instructions us ologix Cold water at hot faucet esito sstavie saat crcidiaeagiestan ERREUR AME RERO AIR FEAR REL ER EAE EA RETE EE ER ERES UR ER ERR RR edet 10 Fan runs for cooling but not heating eee teeth tese itte betae OTA ATRA RREN Eear Ea beenden 10 Heating durmp Standby Mode iw iiiis cated ne ete re case RH AERE aii ER HELL EE tees 10 WARRANTY M E HR 11 CHECKLIST FOR THE INSTALLER A Quick Check List Are the water connections to the water heater oriented in a way to avoid trapping air in the heating circuit Is the purge valve installed on the return line from the air handler upstream from the isolation valve Is the air handler hung and isolated to avoid transmitting vibration through framing and duct work Are the isolation valves full port Restrictive valves will limit performance Is outdoor cooling unit contactor wired according to the wiring diagram Are Thermostat connections correct including cooling and continuous run connections Do they operate their intended zone Have the packing materials been removed from the blower and the
17. oved and the TX valve piped external to the unit To install the TX valve inside the unit A TX valve kit using Chatteff connections is available for threading directly into the flow rater body Make sure the fan speed is correctly selected for the cooling load installed Abnormal conditions such as plugged filter can pose the risk of freezing All ECRW series air handlers include a temperature sensor in the air stream that will detect a near freezing condition and will interrupt the air conditioner until it warms up Refer to wiring diagram mounted inside air handler ATTIC AND CRAWL SPACES Air handlers may be located in areas subject to freezing conditions It is necessary to protect the hot water coil from freezing An optional Freeze protection remote bulb thermostat wired in parallel to the room thermostat can be used to cycle on the pump and blower when conditions get close to freezing The Freeze Protection thermostat cannot protect piping that passes through unconditioned spaces THERMOSTAT The ECRW air handlers are supplied with a standard electronic heat cool thermostat ECRW air handlers are compatible with all thermostats If you Page 8 ECRW Install TM ECRW Series Air Handler Installation Instructions E I Fee logix encounter older style thermostats that require significant power to be dissipated there are large resistors that can be switched into the circuit to accommodate these thermostats See the board wi
18. ring diagram for location of the dip switches DO NOT turn on these resistors unless they are required to avoid wasting electrical power unnecessarily The ECRW air handler is compatible with all standard setback thermostats Setback thermostats can be used to achieve greater energy savings The ECRW series air handler is compatible with both heat cool and heat pump thermosets A switch is START UP PROCEDURE Do not start the air handler or water heater until ALL air has been purged 1 Fill the boiler loop or water heater with water but do not start it 2 Purge all air from the boiler heating or domestic water system 3 Purge all air from the space heating loop by closing the isolation valve on the return leg of the loop and open the drain to purge air Open the return leg isolation valve and then close the drain valve 4 Start the boiler or water heater according to the manufacturer s instructions Set the design water temperature and wait for the system to shut off You can check that the water heater is set properly during the warm up by running a small amount of water into a glass in a sink while the water heater SERVICE AND MAINTENANCE FILTER All Ecologix air handlers are provided with a pleated filter media This filter should be inspected monthly and replaced as required Replacement filters are available from Ecologix DUCT CLEANING If proper filter maintenance is adhered to duct cleaning will not be requ
19. rnal pump Check valves protect against back flow of water to avoid short circuiting around the water heater during domestic water use PLUMBING KIT Air Handlers are shipped complete with a full port ball valve for the supply connection and a full port ball valve with flush port for the return connection These valves are to be installed as close to the heat source as possible as shown in the plumbing schematic THERMOSTAT ECRW air handlers are supplied with a standard heat cool thermostat for installation with the air handler The selected air handler must be sized according to the following rules a Heating capacity should be between 100 and 140 of the heat loss 110 to 140 for combo systems 130 F water temp b Cooling capacity should be between 75 100 of the heat gain Do not oversize When using a boiler system select a boiler with an output that meets or exceeds the heat loss of the space being heated If the boiler is serving additional loads size the boiler to meet the total combined load For combo heating systems use an approved sizing method such as the Unified Combo Guidelines published by HRAI mounting positions For installations where the access door faces up or down select an air handler with an external pump to avoid the pump being mounted with its shaft vertical The pump shaft must be mounted horizontally to avoid premature failure The air handler can be hung by securing straps through any
20. ting Technologies Inc will provide replacement parts for any heating coils cooling coils cabinetry and piping that fail within five years of purchase subject to the terms below Terms Reasonable proof of original purchase date must be provided in order to establish the effective date of the warranty failing which the effective date will be based on the date of manufacture plus thirty days The warranty does not cover failure or damages caused by improper installation or operation accident abuse or alteration operation of device at temperatures or pressures outside of the rated capacities lime or scale deposits corrosive operating environment equipment moved from original installation location Replacements furnished under this warranty will be F O B Ecologix Heating Technologies Inc product distribution points in the United States and Canada They will be invoiced at regular prices The account will be credited the full amount when the defective part is received by Ecologix examined and approved as a valid warranty Warranty applies to the original purchaser but may be transferred to another owner provided the equipment is not moved from the original installation site This warranty does not apply to labour freight or any other cost associated with the service repair or operation of the product Ecologix shall not be liable for any direct special incidental or consequential damages caused by the use misuse or inab
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