INSTALLATION AND OWNER GUIDE FOR 40355, 40455 AND VT9W WALL CONTROLS
F
UNCTIONS
T
HE
TURBO
ICON
IS
FLASHING
DURING
THE
4-
HOUR
CYCLE
. T
O
EXIT
THIS
FUNCTION
BEFORE
THE
END
OF
ITS
4-
HOUR
CYCLE
,
PRESS
ON
TURBO
OR
MODE
KEY
;
THE
UNIT
WILL
GET
BACK
TO
ITS
PREVIOUS
OPERATION
MODE
.
TURBO
TURBO F
UNCTION
TURBO
P
RESS
THE
TURBO
FUNCTION
KEY
TO
TURN
THE
UNIT
ON
AIR
EXCHANGE
IN
HIGH
SPEED
DURING
4
HOURS
,
THEN
,
THE
UNIT
WILL
GET
BACK
TO
ITS
PREVIOUS
OPERATION
MODE
.
3 sec.
T
HE
TURBO
ICON
APPEARS
AND
STAY
CONTINUOUSLY
. T
O
EXIT
THIS
TURBO
MODE
,
PRESS
ON
TURBO
OR
MODE
KEY
;
THE
UNIT
WILL
GET
BACK
TO
ITS
PREVIOUS
OPERATION
MODE
.
P
RESS
AND
HOLD
THE
TURBO
FUNCTION
KEY
DURING
3
SECONDS
TO
TURN
THE
UNIT
ON
AIR
EXCHANGE
IN
HIGH
SPEED
CONTINUOUSLY
.
DEHUMIDISTAT F
UNCTION
CONT
T
HE
DEHUMIDISTAT
FUNCTION
HAS
BEEN
CREATED
TO
MANAGE
THE
INDOOR
RELATIVE
HUMIDITY
EXCESS
. W
HEN
THE
ACTUAL
HOME
R
ELATIVE
H
UMIDITY
PERCENTAGE
(RH %)
DETECTED
IS
OVER
THE
SET
VALUE
,
DROPS
APPEARS
ON
SCREEN
AND
THE
CONTROL
OVERRIDES
THE
CURRENT
MODE
,
TURNING
ON
THE
UNIT
ON
HIGH
SPEED
EXHANGE
UNTIL
THE
INDOOR
RELATIVE
HUMDITY
%
SET
IS
REACHED
. T
HE
UNIT
THEN
RETURNS
TO
ITS
PREVIOUS
OPERATION
SETTING
. R
EFER
BELOW
TO
FIND
OUT
HOW
TO
SET
THE
INDOOR
RELATIVE
HUMIDITY
%.
TURBO
TURBO
I
N
ALL
MODES
EXCEPT
S
TANDBY
AND
SMART,
PRESS
THE
% HUM
KEY
TO
ENABLE
THE
DEHUMIDISTAT
FUNCTION
.
% HUM
CONT
T
HE
ACTUAL
HOME
RH %
LEVEL
APPEARS
ON
SCREEN
(
ENABLED
).
H
OW
TO
ENABLE
AND
DISABLE
THE
DEHUMIDISTAT
FUNCTION
:
CONT
P
RESS
ONCE
MORE
ON
THE
% HUM
KEY
TO
DISABLE
THE
DEHUMIDISTAT
FUNCTION
.
T
HE
ACTUAL
HOME
RH%
LEVEL
DISAPPEARS
FROM
SCREEN
(
DISABLED
).
% HUM
P
RESS
AND
HOLD
THE
% HUM
KEY
FOR
3
SECONDS
.
3 sec.
T
HE
ACTUAL
RH%
LEVEL
APPEARS
ON
SCREEN
. D
EFAULT
VALUE
: 44%
P
RESS
THE
% HUM
KEY
TO
CHANGE
THE
VALUE
.
L
OWER
VALUE
: 30%.
H
IGHER
VALUE
: 56%.
T
HE
VALUE
CHANGES
BY
2%
INCREMENTS
.
T
O
EXIT
THIS
SETING
MENU
,
PRESS
AND
HOLD
THE
% HUM
KEY
FOR
3
SECONDS
OR
WAIT
10
SECONDS
.
H
OW
TO
SET
THE
INDOOR
RELATIVE
HUMIDITY
(RH %)
LEVEL
% HUM
% HUM
3 sec.
% HUM
S
ETTINGS
S
ETTINGS
(
CONT
’
D
)
H
OW
TO
SET
THE
UNIT
OPERATION
IN
THE
REMAINING
40
MINUTES
ON
20
MIN
/
H
MODE
AND
HOW
TO
SET
THE
UNIT
DEFROST
CYCLE
TYPE
P
RESS
AND
HOLD
THE
MODE
KEY
FOR
3
SECONDS
.
MODE
3 sec.
T
HE
SMALL
TRIANGLE
AND
TWO
LINES
FLASH
TO
SHOW
S
TANDBY
(
DEFAULT
CONFIGURATION
SETTING
).
T
HE
LCD
SCREEN
WILL
SHOW
ONE
OF
THESE
CONFIGURATIONS
:
OR
CONT
R
ECIRCULATION
ARROWS
TURN
WHILE
THE
SMALL
TRIANGLE
, rE
AND
CONT
LABEL
FLASH
TO
SHOW
RECIRCULATION
ON
LOW
SPEED
.
OR
TURBO
R
ECIRCULATION
ARROWS
TURN
WHILE
THE
SMALL
TRIANGLE
, rE
AND
TURBO
LABEL
FLASH
TO
SHOW
RECIRCULATION
ON
HIGH
SPEED
.
MODE
TURBO
OR
U
SE
MODE
OR
TURBO
KEY
TO
SEE
ALL
3
CONFIGURATIONS
.
% HUM
P
RESS
% HUM
KEY
FO
ACCEPT
CHOSEN
CONFIGURATION
AND
GO
TO
SETTING
DEFROST
CYCLE
TYPE
.
T
HE
LCD
SCREEN
WILL
SHOW
ONE
OF
THESE
DEFROST
CYCLE
TYPES
:
Sd (S
TANDARD
)
APPEARS
OVER
SNOWFLAKE
ICON
(
DEFAULT
CYCLE
SETTING
). W
HEN
NEEDED
,
THE
UNIT
WILL
PERFORM
DEFROST
CYCLE
ON
HIGH
SPEED
.
NOTE: T
HIS
IS
THE
DEFROST
TYPE
USED
FOR
THE
DATA
PUBLISHED
BY
HVI
AND
ENERGY STAR®.
OR
PL (P
LUS
)
APPEARS
OVER
SNOWFLAKE
ICON
. U
SE
THIS
CYCLE
IN
COLD
REGION
(
OUTDOOR
TEMPERATURE
-27°C [-17°F]
AND
LOWER
). W
HEN
NEEDED
,
THE
UNIT
WILL
PERFORM
DEFROST
CYCLE
ON
HIGH
SPEED
ON
A
LONGER
PERIOD
OF
TIME
.
OR
dI (D
ISCRETION
)
APPEARS
OVER
SNOWFLAKE
ICON
.
W
HEN
NEEDED
,
THE
DEFROST
CYCLE
WILL
BE
PERFORMED
ON
THE
SAME
SPEED
THAN
THE
UNIT
VENTILATION
SPEED
. (
E
.
G
.:
IF
THE
UNIT
IS
SET
ON
TURBO,
THE
DEFROST
CYCLE
WILL
BE
DONE
ON
HIGH
SPEED
,
AND
IF
THE
UNIT
IS
SET
ON
CONT,
THE
DEFROST
CYCLE
WILL
BE
DONE
ON
LOW
SPEED
.
LCD
SCREEN
ALTERNATES
BETWEEN
THE
HOUSE
WITH
CIRCLED
ARROWS
AND
THE
HOUSE
WITHOUT
ARROW
. T
HE
NUMBERS
UNDER
THE
HOUSE
ARE
THE
SOFTWARE
VERSION
NUMBER
.
P
RESS
% HUM
KEY
OR
WAIT
10
SECONDS
TO
EXIT
USER
SETTING
MENU
.
MODE
TURBO
OR
U
SE
MODE
OR
TURBO
KEY
TO
SEE
ALL
3
DEFROST
CYCLE
TYPES
.
% HUM
P
RESS
% HUM
KEY
TO
ACCEPT
CHOSEN
DEFROST
CYCLE
TYPE
AND
GO
TO
SOFTWARE
VERSION
DISPLAY
.
% HUM
P
ROTECTION
M
ODE
T
HIS
ICON
APPEARS
TO
SHOW
WHEN
THE
VENTILATION
UNIT
IS
IN
P
ROTECTION
M
ODE
. T
HIS
SPECIAL
MODE
HAS
BEEN
CREATED
TO
PROTECT
THE
VENTILATION
UNIT
FROM
SPECIFIC
CONDITIONS
(
E
.
G
.:
OUTDOOR
TEMPERATURE
COLDER
THAN
-25°C). T
HERE
IS
NO
ACTION
TO
BE
TAKEN
WHEN
THIS
ICON
APPEARS
,
IT
WILL
DISAPPEAR
BY
ITSELF
.
M
AINTENANCE
I
NDICATOR
CONT
T
HIS
ICON
FLASHES
WHEN
IT
IS
TIME
TO
PEFORM
THE
MAINTENANCE
. R
EFER
TO
THE
VENTILATION
UNIT
USER
GUIDE
.
O
NCE
THE
UNIT
MAINTENANCE
IS
DONE
,
PRESS
SIMULTANEOUSLY
ON
BOTH
MODE
AND
TURBO
KEYS
TO
RESET
THE
MAINTENANCE
INDICATOR
. T
HIS
WILL
ERASE
THE
ICON
FROM
THE
SCREEN
.
MODE
TURBO
AND
