Specifications

3. Check that all access panels or doors are closed.
4. Turn the unit disconnect switch to the ‘On’ position.
5. Wait for fans to run and then shut off unit’s discon-
nect switch. Check that fans are rotating in the cor-
rect direction.
Note: If there is a negative pressure in the space and
an exhaust discharge damper is missing or not clos-
ing properly, the fans with single-phase motors could
be rotating in the wrong direction before the power
is turned on and may not correct itself. Check the
exhaust damper is present and dampers are closing
properly or take corrective action before proceeding.
6. Check that dampers are operating properly.
7. Close all access doors and turn the unit’s disconnect
to the ‘On’ position.
8. Re-check the voltage at the disconnect switch against
the nameplate with all fans operating. If the voltage
is not within 10% of rated have the condition cor-
rected before continuing start-up.
9. Check amperage draw to each motor against motor
nameplate FLA. Do not allow the motor amp draw
to exceed the Motor Manufacturer’s nameplate data.
Excessive amp draw will cause premature failure of
the motor and void the motor warranty. If signifi-
cantly higher, adjust the manual balancing dampers
in the ductwork (change the ductwork static pres-
sure) to lower the amperage draw below the name-
plate FLA.
10. On the HRV600i and HRV1200i there are three
speed settings available with the controls, only two
of which can be functional. The units are factory set
to use the low and high speed taps on the blower
motors. If additional airflow is required, the medium
speed tap can be used instead of the low speed tap.
See Appendix H for instructions on how to make this
change.
11. Check the fan operation on Low, Com and High.
Use a wall control or the dry contact switching to
run fan speeds as shown in Appendix F, Wall Control
Connection.
12. Check the operation of the control options and ac-
cessories provided with the unit. See Frost Control,
Sequence of Operation and Appendix F for functional
descriptions and further details.
13. Check the setpoints on thermostats and controls; ad-
just and record changes as required.
14. When unit has achieved steady state take measure-
ments and complete the readings section of the
Start-up Form in Appendix G and send copy of the
Start-up Form to Venmar CES to validate warranty.
Maintain a copy of the report at the unit for future
reference.
IMPORTANT
On initial power up, the unit will perform a system check
and operate at hight speed for five seconds.
!
WARNING
Only low or high speed contacts must be closed at any
one time never both using dry contacts/jumper wires oth-
erwise permanent damage to the motor and wiring will
occur.
Remote controls, if installed and connected, operate in
conjunction with the dry contacts/jumper wires. When
controlling units with remote controls, use extreme cau-
tion around moving mechanical components such as
fans, belts and motors as they can lead to severe personal
injury.
VCES-HRV-IOM-1C – HRV600i, HRV700i, HRV1200i
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