4
1. TECHNICAL
DATA
1.1 A
IR
D
ISTRIBUTION
N
ORMAL
O
PERATION
D
EFROST
OR
R
ECIRCULATION
VF0045
VF0046
S
TALE
AIR
TO
OUTSIDE
F
RESH
AIR
FROM
OUTSIDE
S
TALE
AIR
FROM
BUILDING
F
RESH
AIR
TO
BUILDING
S
TALE
AIR
FROM
BUILDING
F
ILTERED
AIR
TO
BUILDING
1.2 D
EFROST
C
YCLES
In a cold region, (outside temperature -17°F and lower), it may be necessary to setup EXTENDED DEFROST.
See Section 4.3 or 4.4 according to the unit model.
O
UTDOOR
TEMPERATURE
ERV140 ECM
AND
HRV160 ECM
UNITS
HRV160
UNIT
N
ORMAL
DEFROST
CYCLE
(
MIN
)
E
XTENDED
DEFROST
CYCLE
(
MIN
)
N
ORMAL
DEFROST
CYCLE
(
MIN
)
E
XTENDED
DEFROST
CYCLE
(
MIN
)
°F
D
EFROSTING
O
PERATION
BETWEEN
EACH
DEFROST
D
EFROSTING
O
PERATION
BETWEEN
EACH
DEFROST
D
EFROSTING
O
PERATION
BETWEEN
EACH
DEFROST
D
EFROSTING
O
PERATION
BETWEEN
EACH
DEFROST
23
7
40
9
23
5
40
9
30
5
7
25
9
23
5
25
9
23
-17
10
22
10
22
8
22
10
15
2. INSTALLATION
2.1 I
NSPECT
THE
C
ONTENT
OF
THE
B
OX
When performing installation, it is recommended to wear safety glasses and gloves.
WARNING
!
Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, ports, power cord, etc.
2.2 U
NIT
D
OOR
(
S
)
The ERV140 ECM and HRV160 ECM units have one front door and one
back door while the HRV160 unit has one door. For this last model, the unit
door can be relocated on the back of the unit. This can be helpful to optimize
duct configuration while keeping access for unit maintenance. To change
door location, follow these steps:
A.
Remove both door lower mechanical screws no. 8-32 x 1” (
1
) and set
aside.
B.
Open
(
2
) and lift out the door (
3
).
To remove unit back panel, repeat steps
A
and
B
, but instead of removing
2 mechanical screws, there are 4 mechanical screws to be removed. Hang
the door to the back of the unit and secure it by tightening its both lower
mechanical screws. Hang back panel to the front of the unit and secure it by
tightening its four metal screws.
VO0149
B
3
2
1
A
