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iFlow iFLH-14000W Manual

Hydronic air handler
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iFLOW HVAC INC.
iFLH-14000W
Model
iFLH-18000W
iFLH-21000W
iFLOW AHU MANUAL
iNTELLIGENT SMART IoT TECHNOLOGIES
iFLOW HYDRONIC AIR HANDLER
NEW GENERATION OF HEATING & COOLING
iFLH-16000W
iFLH-18000D
iFLH-18000Q
iFLH-21000D
iFLH-21000Q
WiFi & ZONING
1
www.iflowhvac.com
iFLOW HVAC INC.
www.iflowhvac.com

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Summary of Contents for iFlow iFLH-14000W

  • Page 1 Model iFLH-18000W iFLH-18000D iFLH-18000Q iFLH-21000W iFLH-21000D iFLH-21000Q iFLOW HVAC INC. iFLOW AHU MANUAL WiFi & ZONING iNTELLIGENT SMART IoT TECHNOLOGIES iFLOW HYDRONIC AIR HANDLER NEW GENERATION OF HEATING & COOLING iFLOW HVAC INC. www.iflowhvac.com www.iflowhvac.com...

  • Page 2: Table Of Contents

    2. Checking temperature sensors ……………………………………………………………………………………………………………………………………. 3. Wiring diagrams …………………………………………………………………………………………………………………………………………………………... 25 4. iFLOW Set up and Wiring of an iFLOW with a Heat Pump ....………………………………………………………………………… 32 5. How to set up iFLOW AHU Communication with NAVIEN NPE A2/S2 …………..…………………………………………………..35 Troubleshooting 1.

  • Page 3: Introduction Safety

    2. Summary of air handler IMPORTANT The iFLOW hydronic air handlers are designed to deliver the highest performance rating of any air handler regardless of the hot water A field fabricated auxiliary drain pan with a drain pipe connection is source.

  • Page 4: Product Description

    All air handlers require a field supplied single speed or 3-speed pump, galvanized steel. The inside of the cabinet is fully insulated with ½” to be controlled by the iFLOW circulator control. This the speed of the polyethylene sheets. This prevents moisture and mold growth, as well pump increases or decreases depending on the information provided as unwanted heat loss due to an R-Value.

  • Page 5: Standard Features And Benefits

    Protection) once every 24 hours." • Low ambient freeze protection The iFLOW controller is defaultset to turn on the circulating pump to iNTELLIGENT CONTROL: cycle the total volume of potable water in the system, once every 24 hours. This will prevent stagnation and protect the pump from seizing.

  • Page 6: Equipment Selection And Sizing

    Control Internet/ Smart Mode iFLH-18000W The iFLOW air handler will automatically change the fan and pump Paring Mode with Smartphone speeds to control the temperature output of the unit and cycle-time iFLH-21000W length. This will allow the heat output of the air handler to match the current heat loss of the home.

  • Page 7: Specification

    3 / 4" Male NPT Piping Connection Return 3 / 4" Male NPT 3 / 4" Male NPT 3 / 4" Male NPT 3 / 4" Male NPT Hydronic Heating Coil Aluminum Ultra Efficiency Fins, Copper Tubing iFLOW HVAC INC. www.iflowhvac.com...
  • Page 8 68,255 75,223 73,789 160℉ 55,963 64,732 70,931 77,065 82,681 59,123 69,325 76,905 84,896 85,734 170℉ 61,412 72,078 78,842 85,648 93,893 64,745 77,199 85,627 94,441 96,932 180℉ 66,846 79,354 87,055 94,633 106,456 70,487 84,923 94,336 104,056 109,733 iFLOW HVAC INC. www.iflowhvac.com...

  • Page 9: Suitable Applications: Choosing The Right Heat Source

    Benefit: 7. Air handler with heat pump + boiler The main benefit of the iFLOW Hybrid Heating System is its ability to 8. Air handler with heat pump + combi boiler provide variable capacity heat, which is sufficient to provide the total heat loss of a house regardless of the heat pump capacity.

  • Page 10: Installation

    AIR CONDITIONING AND HEAT PUMPS USED WITH ZONING SYSTEMS It is recommended that when zoning, air conditioning and heat pump units used (with iFLOW air handler models iFLH-16000D, iFLH- RIGHT SIDE FRONT 0 inch...

  • Page 11: Installation Examples

    Anti-Vibration Pad 4) Water Heater / Boiler Piping: When installing the iFLOW air handler with a heating boiler or combi- boiler in a closed loop system, refer to the boiler manufacturer’s instructions for proper installation with an air handler. Depending on...

  • Page 12: Installing The Iflow Air Handler With A Tankless/Tank Water Heater

    2. Remove the iFLOW front access panel. 3. Route the field supplied line voltage wiring to the iFLOW air handler. Tankless 4. Using CSA & UL listed wire nuts, connect the field supplied wires...

  • Page 13: A/C Evaporator Coil Freeze Protection And The Importance Of Wiring The A/C Compressor To The Proper And Dedicated A/C Connector On The Iflow Pcb

    (see figure D). If the 24V signal for the A/C compressor is connected to the thermostat connection on the iFLOW PCB, the 24V signal will come from the thermostat and there is no way for the iFLOW to interrupt the compressor, thus you will have NO A/C FREEZE PROTECTION.
  • Page 14 Temperature sensor varies by model but is generally located near the top center of the PCB. Please consult the PCB schematic in the installation manual for details. If steps 1 & 2 are followed, the iFLOW delivers A/C evaporator and hydronic coil freeze protection. iFLOW HVAC INC.

  • Page 15: Installing The Iflow Air Handler With A Navien Tankless Water Heater

    ø8'' and the Navien tankless water heater. Connect the communication Damper 2000D10A ø10'' cable from the iFLOW AHU to the cascade communication port on 2000D12A ø12'' the Navien Water Heater Panel. (Refer to Page 35, 36) 200D0808 8'' * 8''...

  • Page 16: Service And Maintenance

    1. Remove cables from the temperature sensor. 2. Check the sensor resistance and compare the actual values with the curve on the chart. Temperature 3. Replacement of a sensor is required in the case of severe deviation. Outdoor Temp. Sensor Chart iFLOW HVAC INC. www.iflowhvac.com...
  • Page 17 Pump timer/ exercise function: The iFLOW control is equipped to 6. Turn on the power to the iFLOW air handler and set the room turn on the circulating pump to cycle the total volume of potable water thermostat to ‘heat’...
  • Page 18 (is power supplied Pump Relay State by relay to pump?) Zone 2 Supply Damper Opening Zone 2 Supply (ON = should be operating; Ratio (0%= Fully Closed ~ Damper State OFF= should not be operating) 100%=Fully Opened) iFLOW HVAC INC. www.iflowhvac.com...
  • Page 19 The 3 numbers on the right will indicate which error code is present. If more than 10 errors occur, the oldest error will be deleted Select the rate of humidity, below which, the humidifier will operate. from the memory. iFLOW HVAC INC. www.iflowhvac.com...
  • Page 20 Determines the duration the pump runs for during the Exercise cycle Sets the number of supply zones for the controller to expect. (above). The circulation time should be adjusted according to the pipe length between the heat source and the iFLOW AHU to ensure full circulation. Zone Air Mix Function...
  • Page 21 1=Paring Set the lowest temperature at which you wish the heat pump to operate There are 2 ways to connect to, and communicate with the iFLOW (Balance Point Consideration: H/P COP and cost of electricity at that Air Handler using the iFLOW App: through the internet or by pairing.
  • Page 22 How to access Cooling Parameter: is at or above this set temperature, iFLOW will call on the Heat Pump Push the mode button until the screen reads for heating. If the outdoor temperature is below this set temperature, Press ‘ENT’...
  • Page 23 Item Display Test Operation To maximize efficiency, iFLOW continues to circulate the blower to deliver any residual coil cooling to the home. Blow Motor Speed Control 0 ~ 100%...
  • Page 24 Zone 2 supply damper will open/close as you increase or decrease the value Press enter while 25 is flashing. Blower will open Zone 4 damper OPEN CLOSE and start delivering air through from 0~100%. → → → → → → → → → → iFLOW HVAC INC. www.iflowhvac.com...

  • Page 25: Wiring Diagrams

    3) Wiring Diagrams: SZ Field Installation Wiring Diagram iFLOW HVAC INC. www.iflowhvac.com...
  • Page 26 OUTDOOR FLOW A/C: Hot Water Heating SENSOR SWITCH Cool: Y1, Y2, C H/P: Hybrid Heating Heat: Y1, Y2, B, C Cool: Y1, Y2, O, C A/C or H/P CONDENSING UNIT O.D.S F.SW See Details: Page 23 iFLOW HVAC INC. www.iflowhvac.com...
  • Page 27 3) Wiring Diagrams: DZ Field Installation Wiring Diagram iFLOW HVAC INC. www.iflowhvac.com...
  • Page 28 Z1 RETURN DAMPER A/C or H/P CONDENSING UNIT Z2 SUPPLY DAMPER AC24V Z2 SUPPLY AIR T. SENSOR DRY C HUMIDIFIER Z2 RETURN AIR T. SENSOR AC24V DEHUMIDIFIER BOILER T T AC24V Z2 RETURN DAMPER See Details: Page 23 iFLOW HVAC INC. www.iflowhvac.com...
  • Page 29 3) Wiring Diagrams: QZ Field Installation Wiring Diagram iFLOW HVAC INC. www.iflowhvac.com...
  • Page 30 Z3 SUPPLY DAMPER Z3 SUPPLY AIR T. SENSOR Z3 RETURN AIR T. SENSOR Z3 RETURN DAMPER Z4 SUPPLY DAMPER Z4 SUPPLY AIR T. SENSOR Z4 RETURN AIR T. SENSOR See Details: Page 23 Z4 RETURN DAMPER iFLOW HVAC INC. www.iflowhvac.com...

  • Page 31: Control Board

    H/P , A/C Field Wiring H/P , A/C Field Wiring Hybrid Mode (H/P) It should be connected O or B depending on H/P type. OPTIONAL OPTIONAL CONTROL BOARD H/P CONDENSING UNIT A / C OPTIONAL CONTROL BOARD A/C CONDENSING UNIT iFLOW HVAC INC. www.iflowhvac.com...

  • Page 32: Iflow Set Up And Wiring Of An Iflow With A Heat Pump

    4) iFLOW Set up and Wiring of an iFLOW with a Heat Pump When using an iFLOW with a Heat Pump, the iFLOW can switch If your electric utility provider has ‘peak rate’ periods, the between the refrigerant-based, electric heat pump and the hot...
  • Page 33 ● When set for hybrid mode (Mode 4/Parameter# 12 set to ‘1’) and A / C Evap T. Sensor there is a call for heating, the iFLOW will send 24V AC output to the Y1 and Y2 (to bring on the outdoor condenser unit) and will send 24V AC output to the O for the reversing valve.
  • Page 34 Notes ● The signal for the reversing valve will come directly from the iFLOW to the Heat pump; as such, do not connect anything to the O If the Heat Pump’s default mode is 'Heating', then wire the Heat and B contacts at the thermostat; they can be ignored Pump’s reversing valve to the iFLOW ‘B’...

  • Page 35: How To Set Up Iflow Ahu Communication With Navien Npe A2/S2

    How to set up iFLOW AHU Communication with NAVIEN NPE A/S 1) Viewing the Installer Menu 2) Setting the Application 1. Press and hold the Menu button ( ) and the Back button ( 1. From the Installer Menu, select 1. Application Setting.
  • Page 36 How to set up iFLOW AHU Communication with NAVIEN NCB Combi-Boiler 1) Connecting the Communication Cables You can connect one NCB-H boiler with up to 15 Navien water heaters (NPE-A2 or NPE-S2 Model), using the Ready-Link Service/Installer communication cables. Select the NCB-H series combi-boiler in the cascading system as the main unit, and then connect the water heaters to it as sub units.

  • Page 37: Troubleshooting

    Check airflow. Check refrigerant level. Check proper A/C operation. A/C Evap. Overheating Air temperature ∆T below 5˚F Evaporator Resolution Excessive CFM. Ensure proper A/C operation D.H. Evap. Freeze protection Evaporator temperature below 37˚F D.H. Evaporator D.H. Evap. Overheat Air temperature ∆T below 5˚ iFLOW HVAC INC. www.iflowhvac.com...
  • Page 38 Return air temperature below 60.8˚F before and after a call Room Temp. Low for cooling Abnormal Cooling After a call for heating, ∆T 10˚F does not occur. Resolution Run blower fan until temperature returns to normal operating conditions. iFLOW HVAC INC. www.iflowhvac.com...

  • Page 39: Problems And Solutions

    A freeze protection cycle is when the air handler A/C coil freeze sensor is triggered by unacceptably low discharge air temperature. iFLOW HVAC INC. www.iflowhvac.com...

  • Page 40: Component Assembly Diagram And Parts List

    Components 1) Component Assembly Diagram and Parts Lists Assemble Diagram iFLOW HVAC INC. www.iflowhvac.com...
  • Page 41 0021BC00 iFLH-210000 0014TC10 iFLH-140000 0016TC00 iFLH-160000 Top Plate 0018TC00 iFLH-180000 0021TC00 iFLH-210000 0000HN00 iFLH-14 / 16 / 18 / 210000 10-1 Heat Exchange Pipe Nut 0014MF00 iFLH-140000 0016MF00 iFLH-160000 Middle Frame 0018MF00 iFLH-180000 0021MF00 iFLH-210000 iFLOW HVAC INC. www.iflowhvac.com...

  • Page 42: Ezee Plumbing Kit Diagram

    1" Mixing Valve Gasket 2 Pcs 4 Pcs 2 Pcs 4 Pcs 3 Pcs Mixing Valve Reducer 1" Nut 3/4" Nut 1" Circulator Gasket 3/4" Gasket 1 Pcs 2 Pcs 4 Pcs 2 Pcs 11 Pcs iFLOW HVAC INC. www.iflowhvac.com...
  • Page 43 D H W Thermostat NPE A2 NPE A2 City Water Communication Cable Purge Valve EZEE Mixing Valve Check Valve Heating Supply Heating Return Air Vent Circulator Outdoor Check Thermal Sensor Valve Expansion Tank AC or HP Condensing Unit iFLOW HVAC INC. www.iflowhvac.com...
  • Page 44 1" Mixing Valve Gasket 2 Pcs 4 Pcs 2 Pcs 4 Pcs 3 Pcs Mixing Valve Reducer 3/4" Gasket 1" Nut 3/4" Nut 1" Circulator Gasket 1 Pcs 2 Pcs 4 Pcs 2 Pcs 11 Pcs iFLOW HVAC INC. www.iflowhvac.com...
  • Page 45 NPE A2 NPE A2 Communication City Optional Cable Water Recirculation Return Purge Valve EZEE Mixing Valve Check Valve Heating Supply Vent Circulator Outdoor Check Sensor Thermal Expansion Motorized Valve Tank Ball Valve AC or HP Condensing Unit iFLOW HVAC INC. www.iflowhvac.com...
  • Page 46 3/4" X 1" Pex Adaptor 3/4 Pex Adaptor 1" Mixing Valve Gasket 1 Pcs 5 Pcs 1 Pcs 5 Pcs 3 Pcs Mixing Valve Reducer 1" Nut 3/4" Nut 3/4" Gasket 1 Pcs 1 Pcs 5 Pcs 11 Pcs iFLOW HVAC INC. www.iflowhvac.com...
  • Page 47 D H W Pump for Thermostat NPE A2 Space Heating Only City Communication Water Cable Purge Valve EZEE Mixing Valve Check Valve Heating Return Heating Supply Thermal Expansion Tank Air Vent Outdoor Sensor AC or HP Condensing Unit iFLOW HVAC INC. www.iflowhvac.com...
  • Page 48 3) iFLOW Stand Assembly Description Part # Model Remark iFLOW Universal Stand 00STD01B iFLOW HVAC INC. www.iflowhvac.com...

  • Page 49: Iflow Stand Assembly

    Stand Assembly Instruction SIZE ADJUSTMENT(SCREW POSITION) RH, LH SIDE VIEW FRONT VIEW BACK VIEW iFLOW HVAC INC. www.iflowhvac.com...
  • Page 50 AHU with Tank Water Heater D H W Hybrid Space Heating Application An� Scald Valve Elliminator Outdoor Check Circulator Sensor Valve with Check Valve Air Purge Valve Heat Pump Expansion Tank Tank Water Heater Cold Water iFLOW HVAC INC. www.iflowhvac.com...
  • Page 51 Air Purge Valve Expansion Tank AHU with Tank Water Heater D H W Space Heating Application An� Scald Elliminator Valve Check Cold Circulator Water Valve with Air Purge Check Valve Valve Expansion Tank Tank Water Heater iFLOW HVAC INC. www.iflowhvac.com...
  • Page 52 AHU with Tankless Boiler Boiler Space Heating Application Elliminator Circulator Make up Water Feeder Expansion Tank AHU with Combi Boiler Space Heating Application Tankless Combi Boiler Cold Elliminator Water D H W Make up Water Feeder Expansion Tank iFLOW HVAC INC. www.iflowhvac.com...
  • Page 53 Make up Water Feeder Expansion Tank 2 AHU with Combi Boiler Space Heating Application Tankless Combi Boiler Circulator Circulator with with Cold Check Valve Check Valve Water D H W Make up Water Feeder Expansion Tank iFLOW HVAC INC. www.iflowhvac.com...
  • Page 54 NPE-A2 Series iFLOW AHU & NPE-A2 Piping Diagram Water Heater with Internal Recirculation Cold Water Supply Supply Communication Cable Mixing Valve Air Vent Circulator Motorized Check Valve Check Ball Valve Valve Air Purge Expansion Valve iFLOW AHU Tank NPE-A2 Series Water Heater iFLOW AHU &...
  • Page 55 NPE-A2 Series iFLOW AHU & NPE-A2 Water Heater Piping Diagram Cold Water Supply Supply Communication Cable Mixing Valve Air Vent Check Check Valve Valve Air Purge Valve Expansion iFLOW AHU Tank iFLOW AHU & NPE-S2 NPE-S2 Series Thermostat Water Heater...

  • Page 56: Commonwealth Of Massachusetts Board Policy

    For the commonwealth of Massachusetts: iFLOW HVAC INC. www.iflowhvac.com...

  • Page 57: Warranty And Contact Information

    CHANGE TERM OF WARRANTY TO YOURS 1. Terms of Standard Warranty: All iFLOW air handler parts are warranted and are to be free from defect in materials or faulty workmanship for a 36month period from the date of original installation subject to the Conditions of Warranty set out below. When the original date of installation cannot be determined, the warranty will be deemed to begin six months after the date of manufacture.
  • Page 58 INSTALLATION & OPERATION MANUAL iFLOW AIR HANDLER March 18, 2025 CONFORMS TO UL STANDARD NSF 372 1995 CERTIFIED TO CSA STANDARD C22.2 NO. 236 iFLOW HVAC INC. 29 Howden Road, Toronto, ON M1R 3C7 1-800-985-9227 iFLOW HVAC INC. www.iflowhvac.com...

This manual is also suitable for:

Iflh-18000wIflh-21000wIflh-16000wIflh-18000dIflh-21000dIflh-18000q ... Show all

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