FFQ-B9V_Installation-pictures.jpg

Small- and medium-sized offices

Offices in small- and medium-sized buildings with 10 floors or less

Ventilation equipment is operated either

  • By a tenant company employee with a remote controller, or 
  • By a building management company exclusively

Check installed ventilation equipment

  • Type of ventilation system installed?
  • Location of ventilation system & vents
  • Location of remote controller

 

Medium-sized Office

FXSN-A_Installation-pictures.jpg
medium-sized-office1.jpg

 Airflow entering from outdoors

 Airflow leaving from indoors 

 Air conditioner only circulates the indoor air

①Remote controller switch
②Ventilation hood
③Ventilation vent (exhaust)
④Door vent
⑤Vent / Vent cap
⑥Heat reclaim ventilator

medium-sized-office2.jpg

 Air conditioner

 Air blower

 Remote controller switch

 Ventilation vent (air exhaust)

 Ventilation vent (air supply)

Small-sized Office

FXAQ-PVER_01_001_Installation-pictures.jpg
small-sized-office1.jpg

 Airflow entering from outdoors

 Airflow leaving from indoors 

 Air conditioner only circulates the indoor air

①Remote controller switch
②Ventilation hood
③Ventilation vent (exhaust)
④Door vent
⑤Vent / Vent cap
⑥Heat reclaim ventilator

small-sized-office2.jpg

 Air conditioner

 Air blower

 Remote controller switch

 Ventilation vent (air exhaust)

 Ventilation vent (air supply)

Regular cleaning and maintenance

Operation and maintenance of AC and ventilation equipment are done either

  • By a building management company and a facility manager (medium sized offices), or
  • By the office tenant companies themselves (small offices)

It is important to understand:

  • The operation status of the ventilation equipment: i.e. operation times, airflow amount, etc. 
  • The cleaning schedule and maintenance status

Check, clean & replace filters

Filters are installed to the ventilation ducts behind the vents on the walls and ceilings.
When filters become clogged with dirt, ventilation efficiency decreases. You may not even notice that ventilation capacity has worsened.
It is important to regularly clean or replace filters.
Never operate ventilation systems without filters. Filters prevent outside pollutants coming indoors and protect ventilation equipment.

  • Filters should be inspected once per month for cleanliness and condition and replaced once a year.   

Consult with an HVAC specialist on recommended periodic maintenance and inspection to ensure long-life service and confidence for the heat reclaim ventilators.

If you have any problems in the operation, maintenance, or cleaning of the ventilation equipment, be sure to consult an HVAC specialist.

Create an air passage by opening windows and entrance doors

Using ventilation equipment together with opening windows and doors

Office layout and partitions often change, and the airflow assumed at system installation may not be suitable anymore for the current situation.
Uneven temperatures and air stagnation can easily occur. 
In small or medium-sized offices, you can reliably and effectively change the air in buildings by using the ventilation equipment together with opening windows and entrance doors.

* Open windows for ~10 minutes every hour.
The effect becomes even higher when ventilation is performed 2 times for 5 minutes every hour than with 10min once every hour.
We recommend ventilating before the start of business hours and during breaktimes. 

General-office_Lifestyle---Application-pictures.tif-cq5dam.web.jpg
K.RSS_Installation_pictures.jpg

Open windows (and doors) to create an air passage

When ventilation is performed by opening windows, it is better to open 2 windows instead of 1 in order to create an air passage.
The effect is even better if the 2 windows are located diagonal to each other.

Good example:

It is efficient to open windows that are diagonal to each other

good_example.jpg
bad_example.jpg

Opening 2 windows positioned close to each other will prevent air from flowing through the entire room.


Bad example:

Inefficiency results from opening nearby windows due to the small area in which air circulates.

Difficulties to create a breeze inside even when windows (and doors) are open?

When you feel that the airflow in the room is low

  • Open the window supplying air only partially and
  • Open the window discharging air much wider

A smaller opening for air supply causes air to flow more forcefully. This will increase ventilation efficiency. A narrow opening for the air inlet and wider opening for the air outlet helps mix the indoor air and ventilate the air over a larger area of the room.

difficulties.jpg

Rooms without a window

When a room has no windows (e.g. a conference room), you need to first check the locations of the ventilation vents (air exhaust) on the ceiling. Opening the room door and placing fans or air circulators in the room will help send the flow of air outside the room.

Example ①:
Location of ventilation vent (air exhaust) is outside the conference room

When the ventilation vent (air exhaust) is outside the room, open the door and use a fan to send air OUTSIDE the room.
In this case, having either fans or air circulators both inside the conference room and just outside the door is more effective.

example_1.jpg

Example ②:
Location of the ventilation vent (air exhaust) is inside the conference room

When the ventilation vent (air exhaust) is inside the room/conference room, open the door and use a fan to send air INSIDE the room.

example_2.jpg

CO2 concentration in conference rooms

Closed conference rooms are especially susceptible to air stagnation.
In long or crowded meetings the CO2 concentration in the room quickly increases from the exhaled breath of each person. The CO2 build-up can lead to lapses in concentration and lower work performance.
To quickly ventilate a meeting room, operate the ventilation equipment together with opening the windows and doors.

Changes_CO2.jpg

Changes in CO2 concentration in a Conference Room