Version
mobile
Consumers
Trainings 
Favorites
Master Group
Careers (4) History Management Team and Bios Contact us Business locations Transport Application Business Account
Press Room
Press Clippings Press Releases Logos Photo Gallery masternews
fr
Log In
  • Residential
    Air Conditioning
    Air Conditioners
    Central Air Conditioners Wall Mounted Ductless Air Conditioners Window Air Conditioners Portable Air Conditioners Thru-the-Wall Air Conditioners Packaged Terminal Air Conditioners High Velocity Systems Evaporators for Central Air Conditioners Accessories for Central Air Conditioners Old Models - Air Conditioners
    Heat Pumps
    Central Heat Pumps Wall Mounted Ductless Heat Pumps Multizone Ductless Heat Pumps Built-In and Universal Ductless Heat Pumps High Velocity Systems Evaporators for Central Heat Pumps Accessories for Central Heat Pumps Old Models - Heat Pumps
    Heating
    Heat Pumps
    Central Heat Pumps Wall Mounted Ductless Heat Pumps Ductless Multi-Zone Heat Pumps Built-In and Universal Ductless Heat Pumps High Velocity Systems Evaporator Coils for Central Heat Pumps Accessories for Central Heat Pumps Old Models - Heat Pumps
    Furnaces
    Modulating Gas Furnaces (98% Efficiency) Gas-Fired (95% Efficiency) Electric Old Models
    Solar Energy
    Solar Water Heater System
    Radiant Floor Heating Systems
    Radiant Floor Heating Systems
    Water Heaters and Boilers
    Solar Water Heater Systems Continuous Flow Gas Water Heaters Gas Boilers Electric Water Heaters Gas Water Heaters
    Pool Heat Pumps
    Pool Heat Pumps Old Models
    Air Quality
    Ventilation
    Air Exchangers Air Purifiers Bathroom Fans Kitchen Range Hoods Old Models
    Humidity Control Systems
    Humidifiers Dehumidifiers Old Models
    Geothermal Systems
    Geothermal Heat Pumps
    Water-to-Air Heat Pumps (Pulsed-Air) Water to Water Heat Pumps (hydronic) Hybrid Heat Pumps (Pulsed-Air + Hydronic) Accessories Old Models
    Energy Efficiency
    Central Systems
    Central Air Conditioners Central Heat Pumps
    Wall Mounted Ductless Systems
    Wall Mounted Air Conditioners Wall Mounted Heat Pumps Old Models
    Window and Thru-the-Wall Units
    Window Air Conditioners Thru-the-wall Air Conditioners
    Geothermal
    Geothermal Heat Pumps
    Water Heaters and Boilers
    Continuous Flow Gas Water Heaters Gas Boilers
    Furnaces
    Modulating Gas Furnaces (98% Efficiency)
    Air Quality
    Air Exchangers
  • Commercial and Industrial
    Rooftop Units
    2 to 6 Tons 6,5 to 12,5 Tons 15 to 25 Tons 25 to 40 Tons 50 to 65 Tons Old Models
    Air Treatment
    FanWall Technology Airside Units Heat Recovery (HRV) Energy Recovery (ERV) Vertical Ventilation Make-Up Air Units
    Air Conditioning
    Water-Cooled Air Conditioners Variable Refrigerant Flow Systems (VRF) Water to Air Geothermal Heat Pumps Precision Cooling - Data Centres Chilled Beams
    Chillers
    Air-Cooled Water-Cooled Geothermal Heat Pumps Modular Cooling Towers
    Condensing Systems
    Evaporators Condensing Units
    Thermal Storage Units
    Forced-Air Systems Hydronic
    Humidity Control Systems
    Humidifiers UV Lamps
    CO2 Units
    Water to Water Heat Pumps
    Noise and Vibration Isolations
    Noise and Vibration Isolations
  • Ventilation
    Ventilators
    Centrifugal Fans Utility Set Fans Plenum Fans Radial Bladed Fans Filtered Supply Fans Gravity Ventilators Bathroom Fans Vaneaxial Fans Propeller Filtered Supply Roof Ventilators Exhaust Hoods and Fans Mancooler Fiberglass Fans
    Air and Sound Control
    Fire and Smoke Dampers Louvers Industrial Dampers Control Dampers Sound Control Air Measuring Products Zone Control Products Air Doors Energy Recovery Ventilator Fiberglass Dampers, Louvers and Ventilators - Swartwout
    Grilles and Diffusers
    Supply Grilles Return Grilles Specialized Grilles Square/Round Diffusers Linear Diffusers Critical Environment Diffusers Terminal Units Swirl Diffusers Duct Diffusers
    Dampers
    Steel Dampers
    Ducts
    Modular Ducts Steel
    Filters
    Disposable Filters Filtration Media Permanent Filters Pleated Filters Medium to High Efficiency Filters High Efficiency Filters Odor Control
    Accessories
    Access Doors and Hatches
  • Heating
    Radiant Systems
    Infrared Heating Systems Radiant Floors
    Hydronic Systems
    Architectural Cabinets Hot-Water Heating (Unit Heaters and Radiators) Boilers Water Heaters Pool Heat Pumps Geothermal Systems Panel Radiators Old Models
    Forced-Air Heating Systems
    Gas-Fired Unit Heaters Gas-Fired Make-Up Air Units Portable Heaters
    Heating Parts
    Heating Parts
  • Refrigeration
    Insulated Panels for Walk-In
    Walk-In Coolers Walk-In Freezers Walk-In Blast Freezers
    Evaporators
    Reach-In Cooler Walk-In Cooler Blast Freezer
    Compressors
    Sealed Semi Sealed Scroll Discus Screw Compressors
    Condensing Units
    Air (Indoor) Air (Outdoor) Remote Water Central Refrigerating Plant Quiet
    Condensers
    Air Water
    Commercial and Industrial
    Fluid Condensers
    Refrigerants
    Air Conditioning Refrigeration
    Ice Makers
    Ice Machines, Cubers Ice Machines, Flakers Ice Dispensers Storage Bins
    Wine Cellars
    Units for Wine Cellars
    Accessories
    Accessories Controls Tools
  • Info-Pro
    General Information
    Featured News Limited Warranty Links of our Suppliers Associations and Institutions LeboLab
    Presentation Trainings List Contact Us
    Trainings Business Hours Social Networks Online Services
    Information Training Contacts
    Photos and videos of inventories Grants and Financial Assistance
    Grants and Rebate Programs Lists of Qualified Products
    MSDS
  • Home
  •  > 
  • FAQ

FAQ

Why should I replace my existing heating or air conditioning system?

How expensive are air conditioning and heat pump systems?

How do I select the right heating/cooling system?

What is involved in replacing an old system?

What is involved in installing a new system?

How long can I expect a new system to last?

What are some preventive maintenance things I should be aware of?

Should I change my indoor coil?

Where do I get replacement parts?

What is SEER?

What is a ductless mini-split system?

Can I install this myself?

What are the advantages of installing a ductless mini-split over a central air system?

I want to cover-up the line sets running on the outside of my house. What can I do?

Can I paint the ductless mini-split unit?

Can I purchase from an online dealer?

How should I clean the plasma filter of an I.A.Q. system?

How long does it take to install a ductless mini-split?

Do I need to clean the unit? If so, how?

Can an air exchanger provide humidity?

I have an indoor pool, what type of unit can I install?

Can I use the same ventilation system for my crawlspace and my house ?

For new constructions, are there any requirements or norms I should know about?

How come humidity levels are not lower in the Summer ?

I have a ventilation system, why do I still have some condensation in my windows ?

My contractor is out of business, can a new contractor service my system ?

My system requires maintenance. How do i proceed?

My indoor unit is dripping from the inside ?

What type of system is ideal for my home ?

How much surface can a system cover?

Why should I replace my existing heating or air conditioning system?

You may wish to consider replacing your system if it is old, inefficient or in need of repair. Today's systems are as much as 60% more efficient than those systems manufactured as little as ten years ago. If you are concerned about utility bills or are faced with an expensive repair, you may want to consider replacing your system rather than enduring another costly season or paying to replace an expensive component. If you plan on financing the purchase, the monthly savings on your utility bill should be considered when determining the actual monthly cost of replacing a system.

How expensive are air conditioning and heat pump systems?

Many factors affect the cost of a system, including the size of your home, the type and condition of the ductwork installed and accessories you might need such as a thermostat or an electronic air cleaner. Your local dealer can assist you in finding the right system to meet your needs.

How do I select the right heating/cooling system?

Make sure the unit is properly sized. Your dealer will provide a load calculation for your home. Also ask the dealer to provide an energy analysis to determine operating cost. Some products can reduce air stratification and uneven temperatures from room to room. If you have allergies, an indoor unit with an ECM motor will allow you to circulate the air in your home continuously while filtering the air for about the same cost as operating a standard light bulb. Finally, know your budget parameters and the efficiency of the system being proposed. Does the system offer a payback? In other words, will the monthly savings over time offset the cost of the new unit or efficiency option being considered?

What is involved in replacing an old system?

Aside from the placement of the new equipment, your dealer will inspect several items and determine whether or not these items need to be supplied or replaced. Some of the items include: ductwork, insulation, refrigerant piping, electrical service, wiring, thermostat, condensate piping, flue piping, flue terminations, chimney liner, slabs, filter, driers, registers, grills, drain pans and evaporator coil.

What is involved in installing a new system?

If a system is being added to the home for the first time, most of the items noted in the previous question and answer may be required to install the new system. Besides the equipment, the most significant component is ductwork. The ductwork needs to be properly sized to deliver the right amount of air to each room. The ductwork consists of supply and return ductwork. Your dealer will determine the size of the ductwork going into a space by the amount of air that needs to be delivered to the space.

How long can I expect a new system to last?

If you have a qualified technician perform regular preventive maintenance and service suggested for your unit, industry averages suggest that an air conditioner should last 12-15 years and a gas furnace should last as many as 20-25 years.

What are some preventive maintenance things I should be aware of?

With the proper attention, heating and cooling systems can keep you comfortable year-round. Heat pumps and oil-fired furnaces and boilers need a yearly professional tune-up. Gas-fired equipment, on the other hand, burns cleaner and can be serviced every other year. A close inspection will uncover leaks, soot, rust, rot, corroded electrical contacts and frayed wires. The inspection should also cover the chimney, ductwork or pipes, dampers or valves, blower or pump, registers, the fuel line and the gas meter or oil tank — as well as every part of the furnace itself.

Next, the system should be run through a full heating cycle to ensure that it has plenty of combustion air and chimney draft. Finally, cleaning the burner and heat exchanger to remove soot and other gunk will prevent such buildup from impeding smooth operation. A check of the heat pump should include an inspection of the compressor, fan, indoor and outdoor coils and refrigerant lines. Indoor and outdoor coils should be cleaned, and the refrigerant pressure should be checked.

Blower
Tuning up the distribution side of a forced-air system starts with the blower. The axle should be lubricated, blades cleaned and lower motor checked to insure the unit isn't being overloaded. The fan belt should be adjusted so it deflects no more than an inch when pressed.

Thermostat
While thermostats rarely fail outright, they can degrade over time as mechanical parts stick or lose their calibration. A technician can recalibrate the thermostat but electronic thermostats cannot be recalibrated.

Humidifier
A neglected in-duct humidifier can breed mildew and bacteria, not to mention add too much moisture to a house. A common mistake with humidifiers is leaving them on after the heating season ends. Don't forget to pull the plug, shut the water valve and drain the unit. A unit with a water reservoir should be drained and cleaned with white vinegar, a mix of one part chlorine bleach to eight parts water or muriatic acid. Mist-type humidifiers also require regular cleaning to remove mineral deposits.

Filters
Most houses with forced-air furnaces have a standard furnace filter made from loosely woven spun-glass fibers designed to keep it and its ductwork clean. They need to be changed monthly (1’’ filter) and for the 4’’ to 6’’ filter every 2 season.

Duct cleaning
A maze of heating and air conditioning ducts runs inside the walls and floors of most homes. As the supply ducts blow air into the rooms, return ducts inhale airborne dust and suck it back into the blower. Add moisture to this mixture and you've got a breeding ground for allergy-inducing molds, mites and bacteria. Many filters commonly used today can't keep dust and debris from streaming into the air. To find out if your ducts need cleaning, pull off some supply and return registers and take a look. If a new furnace is being installed, you should probably invest in a duct cleaning at the same time, because chances are the new blower will be more powerful than the old one and will stir up a lot of dust.

Should I change my indoor coil?

When replacing your air conditioner or heat pump, the answer is most likely yes. The efficiency ratings that are advertised for an air conditioner or heat pump are based on the performance as part of a matched system and the refrigerant changes from HFFC to HFC.

Where do I get replacement parts?

Contact an authorized dealer for assistance.

What is SEER?

Seasonal Energy Efficiency Ratio; a measure of cooling efficiency for air conditioners and heat pumps. The higher the SEER, the more energy efficient the unit. Energy efficiency equates to lower electrical bills. Currently minimum SEER rating is 13.

What is a ductless mini-split system?

A ductless mini-split system is comprised of an indoor unit called the evaporator and an outdoor unit called the condensing unit. The evaporator is connected to the condensing unit by copper tubing and electrical wiring which is passed through a 2 ½” – 3” hole. Basically, it is a small central air unit with the flexibility of cooling or heating one room or more; zoning.

Can I install this myself?

No. Only an authorized certified HVAC contractor can install units.

What are the advantages of installing a ductless mini-split over a central air system?

  1. With central air you must cool an entire home when only one room may need cooling. On the other hand, ductless mini-splits cool only the areas you want and not the areas you don’t.
  2. 18,000 BTU is a typical minimum central air unit. With ductless mini-splits, you can use 9,000 or 12,000 BTUs.
  3. 3) Typical 3-ton homes are not zoned or require complex zoning systems, which makes it very expensive for the homeowner. With ductless mini-splits, multiple evaporators make zoning as simple as setting a remote control.
  4. Energy wasted in long lengths of uninhabited ductwork means higher energy bills. Less than 5% cooling loss occurs in insulated refrigerant lines compared with up to 25% through ducts.
  5. Retrofitting homes requires cutting holes in walls, floors, ceilings or decreasing closet space with ducts. Ductless mini-splits require just a 3 or 4” diameter hole in the outside wall.

I want to cover-up the line sets running on the outside of my house. What can I do?

You must install cover-up at the time of installation.

Can I paint the ductless mini-split unit?

It is not recommended to paint the evaporator. If for any reason a problem occurs with the unit in the future, the warranty will become null and void.

Can I purchase from an online dealer?

No, the warranty will become null and void

How should I clean the plasma filter of an I.A.Q. system?

The plasma filter has a life span of 6 to 8 years and should be washed every 400 hours of use. The filter easily detaches to be washed with mild detergent. The filter is not dishwasher safe. A LED light on the indoor evaporator unit will notify you when it is time to clean the filter. If the light is ignored, the unit will automatically shut down after 100 additional hours of use until the filter is washed.

How long does it take to install a ductless mini-split?

Depending on the size on the system, it usually only takes a few hours to a full day to install,

Do I need to clean the unit? If so, how?

Detailed instructions for maintenance can be found in each model’s Owner’s Manual.

Can an air exchanger provide humidity?

An air exchanger does not produce humidity. It is used to evacuate excess humidity in the winter. The use of a humidifier may be required.

I have an indoor pool, what type of unit can I install?

In this case, you must contact a ventilation specialist.

Can I use the same ventilation system for my crawlspace and my house ?

An independent ventilation system is required for a crawlspace, therefore different from the system used for your house.

For new constructions, are there any requirements or norms I should know about?

Yes ventilation norms exist. It is important to find out from your municipality, which one applies. They have the responsibility to ensure the norms are applied.

How come humidity levels are not lower in the Summer ?

Your home’s humidity level depends on outdoor conditions. The use of a dehumidifier or air conditioner may be required.

I have a ventilation system, why do I still have some condensation in my windows ?

Many reasons : window quality, heating temperature, window obstructions (blinds, curtains, etc.), dominant winds, drastic outdoor temperature changes.

My contractor is out of business, can a new contractor service my system ?

Yes. However, only the manufacturer’s warranty still applies. Beware of “in-house” warranties offered by contractors; you must always make sure it will be honoured by the manufacturer.
 

My system requires maintenance. How do i proceed?

First, you must contact the supplier who installed your system. If this is not possible, find one in your region by consulting a list of authorized dealers.

My indoor unit is dripping from the inside ?

Check the drain of pump to see if they are clogged.

What type of system is ideal for my home ?

If you have venting ducts, a central heat pump or air conditioner can be installed. If your heating system consists of electric baseboards or hot water radiators, a mini-split system is a good choice. If you are a tenant, a portable or window unit will suit your needs.
 

How much surface can a system cover?

It depends on many factors i.e. construction type, year of construction, building orientation, etc…. It is best to contact a specialist who will know what to recommend.

  • Contact us
  • Site Map
  • Privacy Policy
  • Terms of Use
  • FAQ
  • Business Locations
  • Careers

© 2012 The Master Group L.P. | The most important and the oldest independent distributor in the air conditioning, heating, geothermal systems, ventilation and refrigeration fields in Eastern Canada. | Note that the masculine form is used only to facilitate reading.

Welcome to the Master Group Dealer Zone

Already registered

User name:

Password:


*First Name:

*Company:

*Last Name:

Function:

*E-mail address:

*Account number:

Address and postal code:

Online Services required:

Extranet
Inventory
eCommerce (online purchase)
My Client Account (Accounting data)
Receipt of invoices by email
Advanced Shipping Notice
Dealers Directory

* Email Advanced Shipping Notice

Email Advanced Shipping Notice

Interest:

Commercial equipment
Heating
Industrial equipment
Refrigeration
Residential

*City:

*Province:

*Phone number:

Fax number:

Do you want to receive our promotions and our last innovations? 

 

Your username or email address:

Add to my Favorites

Application Form!

* Last and first name:

* Email:

* Address:

* Home telephone:

Other telephone:

Where would you like to work:

Type of position you are looking for:

Schedule (shift):

Salary:

Have you worked for Master in the past (directly or via a recruitment agency)?

Yes:    No: 

CV: