iFlow iFLH-14000W, Manual

iFLOW HVAC INC.

www.iflowhvac.com

2) Standard Features and Benefits:

•  Highest  performance  at  98%  efficiency  (CAN/CAS  P.9-11        

Performance Ratings: TPF 0.98)

• Ultra-efficient heat-exchanger design with high-density aluminum 

fins

• Offers installation flexibility allowing for up-flow, down-flow or 

horizontal applications

• Cost effective and extremely quiet variable speed ECM fan motor / 

constant CFM

• Slide-out blower rail assembly for easy maintenance & removal with 

4 screws

• 6 fully modulating models: 3 ‘standard duct’ models (S, M, L) & 3 

high-static pressure models (S, M, L)

• Easy installation: Lightweight, “one-man job” with Optional EZEE 

Plumbing Kit

• Approved for potable water (‘open’) systems with buit-in anti-

stagnation and DHW priority included in the control board

• Air and water supply and return temperature sensors included

• Humidity sensor included for cooling fan speed modulation 

• Freeze Protection/ Evaporator Temperature Sensor

• Outdoor temperture sensor included 

• Intelligent iFLOW control board

• All models are compatible with mercury or digital thermostats

• Supports the use of two stage and inverter-driven variable speed 

cooling equipment

• Accessories are controlled by AC24V power

• LED light indicates alarm, test mode and normal operation

• Auxiliary contacts (dry contact) for boiler or water heater activation

• Bottom or left or right side return air supply

• 0” clearance to combustibles  

• Cabinet lined with 1/2” Polyethylene High-Density Insulation

• Cabinet manufactured with heavy gauge galvanized steel and 

powder-coated to prevent corrosion

iNTELLIGENT PUMP CONTROL:

• Pump modulation control 

• Low flow pump exercise function (Water Circulation / Seize  

Protection)

• Low ambient freeze protection

iNTELLIGENT CONTROL:

• Boiler demand control

• Installer & user-friendly interface 

• Informative display: error code, temperture, humidity, fan & pump 

speed

• Easily configure all parameters smartphone App.

• 22 segment LED indicator / all input & output signals: built-in 

programmable and diagnostic control display

• Outdoor reset function / outdoor temperature sensor

• Full modulation a single or two stage settings for heating & cooling 

• Humidity control / humidity sensor 

• ΔT auto-adjustment air and water (air and water flow control) 

• Fan "ON" delay & Fan "OFF" heat purge control

5

• DHW priority & dual mode (heating and DHW)

• High & low limit safety control: air temperature sensor

• Home freeze protection: low ambient temperature sensor 

• Evaporator freeze protection: compressor protection

• Virtual termostat mode with the smartphone app

• Smart zoning control (saving gas & hydro)

• Maximize heat pump performance / (AVOID) Peak Time AVOID  

Electricity Function

• Hybrid heating system switching control and backup with heat pump 

• Communication with NAVIEN Tankless Water Heater

OPTIONS:

• Multi-system central control for building HVAC systems

• Wi-Fi connection with a smartphone (Free app available on iOS and 

Android)

• Remotely adjust and monitor operation through web integrated plug-

in control, or directly via a smartphone connection

• All-in-one package (EZEE plumbing kit and stand) for easy 

Installation: iFLOW AHU with any TLWH/TWH

Freeze Protection:

iFLOW Air handlers include a freeze protection sensor that will 

temporarily disable the outdoor condenser for 5 minutes if the 

evaporator coil outlet temperature drops below 40°F/4°C. This will 

allow the system to warm up and return back to normal operating 

conditions. 

To protect the hydronic heating coil from freezing, the pump will 

operate for a minimum of 30 seconds. Dirty air filters, oversizing of A/

C equipment, improper A/C installation or poor duct design will also 

play a role in the evaporator coil freezing.

Water Circulation / Pump Exercise:

In section 4.2.5.1 Prevention of Stagnation of the 'CAN/CSA-B214-12 

Installation Code for Hydronic Heating Systems', it states: "a means 

shall be provided to prevent the stagnation of potable water in a 

hydronic system by recycling or flushing the contents not less than 

once every 24 hours."

The iFLOW controller is defaultset to turn on the circulating pump to 

cycle the total volume of potable water in the system, once every 24 

hours. This will prevent stagnation and protect the pump from seizing. 

There is a test button to verify that this operation is working. The 

setting can be adjusted to circulate more frequently if desired.

Alarms:

In the event of a service problem (i.e. temperature sensor failure, low 

ambient temperature, cooling lockout, etc.), the iFLOW air handler 

will notify the user/owner with an audible alarm and red light. The 

alarm on the control board can be silenced by turning the power off 

for 5 seconds and then back on.