Table K2: Start-up Checklist
Checklist Item Yes N/A
1 Before proceeding, complete the pre start-up checklist.
2
For the unit to start when the disconnect switch is turned on, a ventilation and fan speed call is required.
a. Is a ventilation call available from the remove wall control connection, occupied timer/sensor connection or
BMS, whichever is used? See Appendix F for which terminal connections should be closed (contacts made)
once power is connected. Circle which device is used.
b. Is either a low speed or high speed (if equipped) call available from the remote fan control, CO2 ventilation
control or BMS, whichever is used? See Appendix F for which terminal connections should be closed
(contacts made) once power is connected.
c. If ‘a’ and ‘b’ are not connected, start can be accomplished by using temporary external dry contacts or a
jumper wire closing timer contacts 3 and 4 (left side) plus low speed contacts 3 and 4 (right side) or high
speed contacts 4 and 5 (right side). Are temporary dry contacts or a jumper wire used for start?
WARNING
Only low or high speed contacts must be closed at any one time using dry contacts/jumper wires, not both otherwise 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 caution around moving mechanical components such as fans and motors as they can lead to
severe personal injury.
3 Close all access panels or doors.
4
Turn the unit disconnect switch to the ‘On’ position.
IMPORTANT
On initial power up, the unit will perform a system check and operate at high speed for five seconds.
5 Are dampers operating properly?
6Wait for fans to run and then shut off unit’s disconnect switch. Are the fans and motors rotating in the
correct direction? To reverse fan rotation, interchange two wires on load side of three-phase power supply.
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 and against phase-to-phase readings
on three-phase with all blowers operating. If the voltage is not within 10% of rated or 2% of phase-to-
phase have the condition corrected before continuing start-up.
9
Check amperage draw to each motor on each phase against motor nameplate FLA. Do not allow the
motor’s 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 significantly different check ductwork static,
adjust fan motor sheave to reduce fan rpm and/or take corrective action.
10 Check the fan operation on Low, Com and High (if equipped). Use a wall control or the dry contact
switching to run fan speeds as shown in Appendix F.
11 Check the operation of the control options and accessories provided with the unit. See Frost Control,
Sequence of Operation and Appendix F for functional descriptions and further details.
12 Check the setpoints on thermostats and controls; adjust and record changes as required.
13 When unit has achieved steady state take measurements and complete readings section of start-up form for
each operating cycle to verify all components are functioning properly.
Serial Number: _____________________________________
VCES-HRV-SF-2 – HRV2000i/e Start-up Form June 2014
