Install Manual

Operation
18 Automatic Transfer Switch Owner’s Manual
Close to Inverter Source Side
Before proceeding, verify the position of the switch by
observing the position of the manual operation handle in
Figure 4-1 . If the handle is DOWN, the contacts are
closed in the inverter (standby) position. No further action
is required. If the handle is UP, proceed with Step 1.
1. With the handle inserted into the movable contact
carrier arm, move the handle DOWN. Be sure to
hold on to the handle as it will move quickly after
the center of travel.
2. Remove manual operating handle from movable
contact carrier arm. Return handle to storage
bracket.
Return to Utility Source Side
1. Manually actuate switch to return manual operating
handle to the UP position.
2. Remove manual operating handle from movable
contact carrier arm. Return handle to storage
bracket.
NOTE: Be sure to remove handle from mechanism
upon completion and before installation of protective
covers.
Voltage Checks
NOTE: Use the Digital Multimeter (DMM) LowZ low input
impedance setting to collect accurate voltage
measurements. LowZ eliminates the possibility of
inaccurate ghost voltage readings, also known as
phantom voltage or stray voltage readings. See DMM
manufacturer’s literature for additional information.
Utility Voltage Checks
1. Turn ON the utility power supply to the transfer
switch using the utility service disconnect circuit
breaker.
2. With an accurate AC voltmeter, check for correct
voltage. Measure across ATS terminal lugs N1 and
N2; N1 to NEUTRAL and N2 to NEUTRAL.
Inverter Voltage Checks
1. Open all breakers in load center.
2. Open service entrance breaker in ATS or switch
upstream of the ATS.
3. Inverter should switch the ATS and begin powering
the load center.
4. Confirm voltage and frequency of each phase in
load center using multimeter. Each phase should
be between 118-124V, and 59.9-60.1Hz.
5. To end test, close the service entrance circuit
breaker.
NOTE: Battery should be charged to at least 20%
before performing this test.
PWRcell Voltage Tests
Inverter Tests Under Load
1. Open all breakers in load center except one dual-
pole breaker of 20-30A.
2. Open service entrance breaker in ATS or switch
upstream of the ATS.
3. Inverter should switch the ATS and begin powering
the load center.
4. Check power output from inverter on the LCD
interface on the inverter. If less than 1kW, close
more breakers in load center until load reaches
1kW.
5. Confirm voltage and frequency of each phase in
load center using multimeter. Each phase should
be between 118-124V, and 59.9-60.1Hz.
6. To end test, close the service entrance circuit
breaker, then the remaining breakers in the load
center.
NOTE: Battery should be charged to at least 20%
before performing this test.
Installation Summary
1. Verify the installation has been properly performed
as outlined by the manufacturer and that it meets
all applicable laws and codes.
(000129)
DANGER
Electrocution. High voltage is present at
transfer switch and terminals. Contact with live
terminals will result in death or serious injury.
(000123)
DANGER
Electrocution. Turn utility supply OFF before
working on utility connections of the transfer
switch. Failure to do so will result in death or
serious injury.
(000129)
DANGER
Electrocution. High voltage is present at
transfer switch and terminals. Contact with live
terminals will result in death or serious injury.
(000129)
DANGER
Electrocution. High voltage is present at
transfer switch and terminals. Contact with live
terminals will result in death or serious injury.