Cumberland PRO-VISION, Руководство пользователя

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19
PRO-VISION rev.04
PRO-VISION
Fan 1 Fan 2 Fan 3 Fan 4
1
st
step:
3 cycles
ON ON
OFF OFF
2
nd
step:
3 cycles
OFF ON ON OFF
3 rd step:
3 cycles
OFF OFF ON ON
4
th
step:
3 cycles
ON OFF OFF ON
Select: 1.
Main menu
* Minimum Ventilation
Fan Cycling
* A password may be required to access this menu
(see section 4.2.1).
Min Vent Fan Cycling
Fans per cycle
Change fan cycle
Fan 1
Fan 2
Fan 3
Tun 1
Tun 2 1
1
On
On
Cycle
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Set the following parameters: 2.
Fans per cycle — Select how many cycling
fans must be activated simultaneously in a
minimum ventilation cycle. Only the fans that
are labeled
“Cycle” will make a rotation from
one minimum ventilation cycle to the other.
The fans that are labeled
“On” are the regular
minimum ventilation fans used in all minimum
ventilation cycles.
Change fan cycle — Select after how many
minimum ventilation cycles the selection of
cycling fans must switch. This parameter
ranges from 1 to 1,000 cycles.
Fan#x / Tun#x— To use a fan/tunnel fan ac-
cording to the above fan cycling parameters,
set its status to
“Cycle” . * Note that the status
of all regular minimum ventilation fans cannot be
set to Off (- - -).
Air Intake in Min Ventilation 6.2.4.
• If the attic vent is not used:
If the attic vent is not used, the air intake in
minimum ventilation is exclusively provided
by the sidewall vent: the vent opens during
the
“Vent Pre-opening”
delay at the startup
of each cycle and then moves according to
its respective static pressure limits until the
fans stop. When they do, the sidewall vent
closes and stays closed until the beginning
of the next cycle.
• If the attic vent is used:
a) With the attic compensation:
i. When the compensation is ongoing,
the air intake in minimum ventilation is
exclusively provided by the attic vent (the
sidewall vent stays closed). The attic vent
opens during the
“Vent Pre-opening” delay at
the startup of each cycle and then moves
according to its respective static pressure
limits until the fans stop. When they do,
the attic vent closes and stays closed until
the beginning of the next cycle.
ii. When the compensation is over, the air
intake in minimum ventilation becomes
provided by both vents (attic & sidewall):
the vents open during the
“Vent Pre-opening”
delay at the startup of each cycle and then
move according to the sidewall vent’s
static pressure limits until the fans stop.
When the fans stop, both vents close and
stay closed until the beginning of the
next cycle.
b) Without the attic compensation:
If the attic vent is used but the attic
compensation function is disabled, the air
intake in minimum ventilation is exclusively
provided by the attic vent (the sidewall vent
stays closed). The attic vent opens during
the
“Vent Pre-opening” delay at the startup
of each cycle and then moves according
to its respective static pressure limits until
the fans stop. When they do, the attic vent
closes and stays closed until the beginning
of the next cycle.
Pre-Opening of the Vents:
The pre-opening
delay is used to pre-open the vents (sidewall
& attic vents) before activating the fans at the
startup of each minimum ventilation cycle. The
controller can use a steady pre-opening delay
or can set this delay automatically. Refer to
the Set-up menu in section 4.4 to enable/
disable the automatic pre-opening function
and refer to section 6.3.2 to set this delay if
the automatic function is not used.
Automatic Pre-Opening Delays: If the au-
tomatic pre-opening function is used, the
controller refers to the time it actually took for
the vents to reach the desired pressure range
the last time they had to open and then sets
the next pre-opening delay accordingly.
Refer to section 6.3.2 to set the pre-
opening delay & the static pressure
limits.
ON
OFF
Min.V
Fan
Status
Opening of the Vents in
Minimum Ventilation
Time
ON Time
Pre-opening of
the vents.
The vents move
according to the
static pressure level.
The vents close
and stay closed
Cycle
Time
Attic Compensation on the Min Ventila-
tion Air Intake
When the PRO-VISION operates in minimum
ventilation and the attic temperature is warm
enough, the controller can extract the warm
air from the attic by increasing the operating
time of the fans. When this compensation is
on, the controller automatically adjusts the
“On Time“
portion of the minimum ventila-
tion timer as a function of the room tem-
perature.
If the room temperature is cooler than the
“Attic start comp at”
value and the attic tem-
perature is equal or higher than this start-up
point, the
“On Time”
of the minimum ventila-
tion cycle is fully compensated in order to
extract a maximum level of heat from the
attic (the fans are always on). As the room
temperature rises and reaches the compen-
sation’s start-up point, the
“On Time”
starts
decreasing gradually, in a linear fashion, as
the room temperature increases. The
“On
Time”
finally stops being compensated when