Installation Owner's manual

II0152A
Page 2 of 2
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline [phone]
2. A2-155regulatorissuppliedseparatelyonrequest
withaftermarketunits.Regulator is flat-temperature
compensatedandisfactory-setatlowestsettingto
accommodatemaintenance(8D)batteries.Forother
batteries, change voltage selector switch position on
bottomofregulator.SeeTable1.
When replacing A1-704, C711, or
C712 alternator, the existing regula-
tor must be replaced with A2-155
regulator. Failure to do so will result
in improper operation of unit.
Neither regulator nor alternator can
be modified to accommodate older
model regulators.
3. Install regulator on anti-drive end housing. Torque
mountingscrewsto8.5Nm/75lb.in.
4. A2-155regulatorconnections:
• Plugalternator-to-regulatorharnessinto
reg ulator.
• ConnectIGNterminaltoignitionsourcethrough
 existingswitch.TorqueM5terminalnuton
 regulatorto4.5Nm/40lb.in.
• ConnectPterminaltotachometerorrelay.
 PterminaltapsACvoltage,typicallyhalfthe
 chargevoltage.TorqueM6terminalnuton
 regulatorto4.5Nm/40lb.in.
5. WhenreplacingC711orC712alternators,theF+
sensewireisnolongerneededforthenewC714
alternator.RemoveF+sensewiringfromvehicle.
6. All cabling, wiring or conduit must be supported
within 305 mm/12 in. of termination on alternator.
7. Choosewiregaugecapableofhandlingmaximum
alternator output with no more than 0.2 V drop on
each leg fromalternatortobattery.
8. Follow vehicle manufacturer’s recommendations for
belt tension.
CAUTION
Table 1 – Voltage Select Switch Position
4 Voltage Setpoints (Fig. 2)
Position 1 14.0 V
Position 2 14.4 V
Position 3 14.8 V
Position 4 15.5 V
Battery Type
Maintenance (D Category)
Maintenance-Free (Group 31)*
Maintenance-Free (Group 31)*
Battery Isolator setpoint
*Group 31 batteries: If boiling or excessive gassing occurs with higher voltage setpoint (position 3),
change to lower voltage setpoint (position 2).
Figure 2—4 Voltage Setpoints
1
2
3
4