© Munters Corporation , March 2017
18
QM1224r3
In most climates, it is probable that the ventilation system will never need to operate at a total capacity during the
colder winter months. Consequently, it is advisable to "winterize" those fans which will not be used in cold weather to
avoid unnecessary heat loss and condensation.
To winterize, turn fan control "off" and install an insulated closure panel over the fan intake. If you don't have an
insulated closure panel, a piece of rigid insulation material can be used. Remember the insulation panel must be
removed before warmer weather returns.
6.1 Winterizing
NOTE:
At least one single speed fan should be left uncovered and with power available to provide air
movement in the event of variable speed control difficulties.
Winterizing
6.
6.2 Winter Weather Protection
To prevent cone or fan damage from snow or ice sliding off building roof, weather protection must be
provided. A weather shelter may be constructed to cover the entire fan,
See Figure 10,
or snow guards
may be placed on the roof,
See Figure 11
Building
Wall
Provide Weather
Shelter Over Fans
6" Min.
Fan with
Discharge Cone
Figure 10
Snow Guards located per manufacturers
recommendations*
Ceiling
Figure 11
Note:
Snow guards are designed to prevent sudden, dangerous snow
and ice slides when attached to the building roof according to
manufacturers recommendations. The supplier listing above is given
as a reference only. Aerotech does not endorse any specific snow
guard product and no performance warranty is implied.
Munters Product and System
Warranties do not cover cone or fan
damage from external sources.
IMPORTANT
!
Snojax, Inc.
800-766-5291
717-697-2452
www.snojax.com
Polar Blox
800-298-4328
814 629-9090
www.polarblox.com
LM Curbs
800-284-1412
903 759-3598
www.lmcurbs.com
Alpine Snow Guards
888-766-4273
888-766-9994
www.alpinesnowguards.com
*Snow Guard Suppliers
Company Name
Phone No.
Fax No.
Web Site
Fan with
Discharge
Cone
