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FLOWMAX™ Combination Condensing Tankless Water Heaters

FLOWMAX™ condensing water heaters with on-demand domestic water production:

  1. Are built on experience and incorporate the latest technological know-how to produce space heating and domestic water production.
  2. Use an efficient and compact design, allowing for ease of installation in both new construction and retrofit applications.
  3. Provide simplified controls and features. The units operate efficiently and are environmentally friendly.
  4. Are available in different capacities and burner modulation affording flexibility in application and while meeting varying needs for domestic water.
  5. Are designed for compatibility with a wide choice of accessories and can be used for: domestic hot water - tankless mode or with storage tank and home heating configurations with air handlers for space heating.
  6. Come with DIGITECH©, a brand new electronic control system. FLOWMAX™ condensing water heaters can operate with multiple types of heating systems: hydronic systems incorporating radiators, fan coils or in-floor heating, while maintaining high efficiency levels and comfort control.
  7. Include an advanced self-diagnostic system providing the user a simple way to set and verify equipment operation on a back-lit display. Diagnostics are easily identified through symbols.
  8. Contain the exclusive MULTIPLEX© technology incorporated in the FLOWMAX™ condensing water heaters ensures that the highest efficiency levels are optimized  through the use of advanced hydronic circuits
FLOWMAX™ product

Benefits

Energy Efficiency

Single burner
Condensing burner efficiency
Electricity savings of ECM motor
Home heating a very small draw on DHW system
Insulating value of indirect tank
Priority system temperature controlled by zones

Flexibility

Supports multiple configurations & applications
Range of products to meet heating & DHW demands
Choice of Low Velocity or High Velocity systems
Various installation options to minimize space requirements
Separate water streams for each component
Mini duct system for installation flexibility and retrofits
All components tested as a system

Reliability

Build quality of FLOWMAX™ (all metal parts)
Innovative design for flow detection
Build quality of AIRMAX
Warranty service
Local Service & Support

Comfort & Control

More consistent temperature throughout
Better air filtration
Priority control with High Velocity system
System works with basic & advanced temperature control devices

Reliability, Performance and Serviceability

The FLOWMAX™ products are manufactured to a high specification and in compliance with relevant standards.

The design of the FLOWMAX™ product line addresses three key areas: Reliability, Performance and Serviceability
For the home builder, home owner & service technician, experience has shown that these key areas play a substantial role in minimizing the life cycle costs for residential boiler systems.

High Performance with 98% Efficiency

FLOWMAX™ delivers performance and efficiency with DIGITECH® the advanced electronic module with LCD for the self-diagnostic function and operating temperatures display, and a new premix burner with radial micro-flame and combustion chamber made of stainless steel to guarantee a high level of efficiency, and the latest version of MULTIPLEX® water group modulation, the FLOWMAX™ provides consistent performance with a high efficiency rating.

Control Panel
Interior

Product Reliability through Quality in Manufacturing & Materials

The materials used in FLOWMAX™ such as copper, brass & stainless steel form a compact, homogeneous, highly functional unit that is easy to install and simple to operate. In its simplicity, the wall-mounted FLOWMAX™ is equipped with all the appropriate accessories required to make it a fully independent tankless water heater capable of satisfying domestic hot water production and central heating needs. All tankless water heaters are fully inspected as part of the manufacturing process to ensure quality.

interiorfull

Simplified Serviceability through Design

FLOWMAX™ has been designed with servicing requirements in mind. All the electronics are modularized in a single reliable unit. Panels, front and sides, are easily removable making all serviceable parts accessible. Components, known to be unreliable such as flow switches & pumps, have been redesigned and simplified for improved performance and reliability over time.

FLOWMAX™ Models

FLOWMAX™ 90 and 90

FLOWMAX™ 90

FLOWMAX™ 90 and 120

FLOWMAX™ 120

FLOWMAX™ 170

FLOWMAX™ 170

FLOWMAX™ Operation

Specifications

FLOWMAX™ Brochure
FLOWMAX™ Brochure

FLOWMAX™ Product Brochure

Download Product Brochure

Benefits

Hydronics Benefits
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Basic Operation

FLOWMAX™ / AIRMAX; Basic Operating Information Guide
  1. The combination system uses hot water as its single source of heat.
  2. The FLOWMAX™ Dual Purpose Tank-less Water Heater provides both domestic hot water for faucets, showers, dishwashers, clothes washers and space heating water for household heat. The two streams of hot water are separate so that space heating water will never be mixed with domestic hot water. Space heating hot water can also be used for " in-floor radiant heating ".
  3. The MaxAir Air Handler contains a space heating fan coil that uses hot water circulating through the fan coil to distribute warm air throughout the house. An energy efficient electric motor housed with the air handler drives the fan which pushes the warm air through the duct work providing heating to all the rooms of the house. In the case where the home is more than two stories high, the Max Air High Velocity system provides higher CFM (cubic feet per minute) output to ensure that all rooms are heated equally whether they are the closest to or furthest from the heat source. The Hi Velocity System also utilizes a very space efficient Mini Duct System, which is acoustically insulated to allow more fast moving warm air to circulate quietly and equally throughout the house.
  4. AIRMAX and FLOWMAX™ can be used in conjunction with Air Conditioning Units, Heat Recovery Ventilators, UV Air Purifiers and The AIRMAX Prioritizing Comfort System.
  5. While it is common for the HVAC System to be located in a mechanical room in the lowest area of the house, AIRMAX and FLOWMAX™ can be located anywhere in the building according to architectural / HVAC design.
  6. The AIRMAX and FLOWMAX™ System is designed to be a quiet running system that is both space and energy efficient and will meet all local building code requirements. It is both CSA approved and Energy Star certified.
  7. In a situation where high hot water demand is common in the house, a back- up in-direct storage tank, which acts like a large thermos with no dedicated heating element will be built into the system to guarantee a constant supply of hot water. The storage water is controlled by the FLOWMAX™ heater. Again, we emphasize that the FLOWMAX™ heater is the single heat source and it controls exclusively the supply of hot water to the home and the amount of energy required to deliver hot water. This is how energy saving is achieved.
  8. The system is also very space efficient and can be accommodated in small spaces freeing up valuable space for other uses.

Download Basic Operating Information Guide

News & Important Information

AIRMAX/FLOWMAX Combo System Test Results

Star

Natural Resources Canada - Ressources naturelles Canada

The NRC has posted the test results based on the new CSA P.9 standard.

The NRC results can be viewed here.
Star

By: Alex Newman Living, Published on Fri Nov 22 2013

New HVAC system lowers energy costs, improves comfort

Instant hot water heater combined with continuous air handler reduces energy-use rating by 28 per cent and cuts electricity costs by 35 per cent.

Newman and Dog
AARON HARRIS / FOR THE TORONTO STAR
Alex Newman and her dog, Emma, are enjoying a more comfortable, nice-smelling house after installing a continuous-flowing HVAC system.

Although I’ve never been susceptible to sales pitches, close friends know I go a little weak in the knees when someone talks green to me. So when John Godden of Clearsphere told me how a new HVAC system for my 80-year-old Beaches home could reduce my carbon footprint, my little enviro-heart was all aflutter.
It seemed a wise decision for other reasons as well. Read more . . .


New HVAC system lowers energy costs, improves comfort

Instant hot water heater combined with continuous air handler reduces energy-use rating by 28 per cent and cuts electricity costs by 35 per cent.

Newman and Dog
AARON HARRIS / FOR THE TORONTO STAR
Alex Newman and her dog, Emma, are enjoying a more comfortable, nice-smelling house after installing a continuous-flowing HVAC system.

Although I’ve never been susceptible to sales pitches, close friends know I go a little weak in the knees when someone talks green to me. So when John Godden of Clearsphere told me how a new HVAC system for my 80-year-old Beaches home could reduce my carbon footprint, my little enviro-heart was all aflutter.
It seemed a wise decision for other reasons as well.
The furnace was 18 years old and no longer considered high-efficiency. It was also twice the size necessary for a 1,500-square-foot house, which accounted for the rapid on-off cycles, heating up quickly then shutting off as soon as the thermostat registered the desired temperature. The result was uneven heat over the first and second floors, and basement.
The air conditioning unit wasn’t efficient either, for the same reason: too big. And because it’s supposed to run continuously to perform properly as a dehumidifier, the cycling on and off was a problem.
To demonstrate how my home measured up, Godden ordered an energy audit with blower-door test to see exactly where and how much energy was being lost.
The test revealed that my house had a HERs (home energy rating system) score of 102 — about the same as an average new home. Many older homes have a rating of 120 to 150.
A home that uses zero energy would have a rating of 0. But the aim here was more modest: to reduce energy consumption by at least 25 per cent and drive the rating down to about 75.
First, Godden recommended improving the building envelope, so the new mechanical system could achieve maximum efficiency.
The single-glazed windows on the main floor were replaced with low-E argon double glazing, foam insulation was sprayed onto the exterior walls, and cellulose insulation was blown into the attic, increasing its R- value from 12 to 50. A large crack in an upstairs plaster wall, leaking air to the outside, was patched, as was a hole in the attic where a previous renovator had improperly installed the bathroom exhaust fan.
Then came the new HVAC system that Godden suggested: with a dual-purpose hot water heater, air handler, energy-recovery ventilator (ERV), and drain-water heat recovery.
As he explained, the heart of the system would be the 98.4-per-cent-efficient FlowMax instant hot water unit. This small slim box replaces the old hot water tank, but takes up one-third the space, and provides hot water for the shower, sinks and dishwasher.
The FlowMax also heats the air going into the AirMax, an air handler with a DC motor that lets air circulate continuously, even when the heating and cooling are not on. This motor consumes 80 per cent less electricity than a conventional motor.
Cooling is handled by the air handler, coupled with a 14.5 SEER CompactAir unit by Manuflow. The nice thing is its slim size, which hugs the side of the exterior wall and doesn’t stick out into the garden.
The warmed, or cooled, air is then distributed through the house via the existing ductwork. Another option would have been to install a special high-velocity duct system for maximum comfort, but it was over my budget and the existing ductwork was sufficient.
Another of the system is an energy recovery ventilator. Kind of like the lungs of the house, it draws fresh air in from outside and circulates the air through the house before expelling the stale air outdoors.
As air passes through the ERV and is re-used, 70 per cent of its heat is withdrawn.
It also transfers moisture between humid and dry air streams, retaining some humidity in winter when the air is dry, and exhausting some in summer when the air is moist. This ability to automatically regulate interior humidity levels eliminates the need for either a humidifier or dehumidifier.
The last piece in the system is the drain-water heat-recovery pipe — a copper pipe that replaces a section of the stack. Flex hoses carry warm water from the pipe to the water heater, where heat is extracted and added.
Although the drain water pipe can’t heat the house, it does help raise the water temperature, thereby reducing the energy required for hot water delivery by 30 to 40 per cent.
After all the improvements were done, it was time to calculate energy savings. On paper, the HERS rating on my house is now 74 — a reduction of 28 per cent. (A new Energy Star home is 60.)
But the real proof came in the mail with my electric bill. Consumption for June and July was about 1,100 kWh, compared to 1,845 for the same period in 2012 and 1,719 in 2011 — a reduction of about 35 per cent.
Although it’s too soon to know what winter will bring, there should be similar savings on the gas bill. To sweeten the pot, Enbridge offers a $1,500 rebate for a 25-per-cent energy reduction. For more information, go to projectfutureproof.com.
It feels good to be treading lighter on this good Earth. But as pleased as I am with a lower carbon footprint — and corresponding bills — there have been some unexpected benefits.
For one, the system is quiet — no more roaring on and clanking off. And, thanks to the air being distributed continuously, the temperature is more consistent and comfortable over all three floors.
The icing on the cake is the smell. When you have pets (two cats, one dog, and counting) no amount of cleaning completely eradicates the musty or acrid animal odour.
Not anymore, thanks to the continuous circulation through the ERV and vented outdoors, I come home to a comfortable, nice-smelling house.

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