New Features - SPAL FAN-PWM-V3 Instructions For Use Manual

New Features of 3rd Generation PWM
• Ability to reset to any one of 3 preset temperature ranges when using FAN-PWM-TS sensor
• Smart fan diagnostics detects stalled or over current fans to prevent module damage
• New 16 bit MCU for increased resolution on temperature sensor input
• Primary fan low power starts to reduce the current spike on electrical system
• Onboard status LED and status output for vehicle interior status light
• Quality Deutsch IPD connectors on the premium harness made in USA
• Silicone rubber button membrane and case seals for improved durability
• Improved AC input timing to minimize fan operation during defrost cycles
• Single unit capable of use with both 12VDC and 24VDC systems
**WHY THIS MAY BE IMPORTANT FOR YOU**
In an effort to add features and improve quality of the FAN-PWM the functionality of the
unit may impede previous 'creative' installations of FAN-PWM's.
• A brushed DC motor MUST be connected to the fan output or the unit will report an
error code. Possible use with very low power (<4A) fans and non SPAL products may
also cause fan not found error code. SPAL USA will not guaranty this products function-
ality with NON SPAL fans as too often specifications are unknown.
• Over current protection means that the output will SHUT DOWN if the measured fan
continuous run current increases above 30A for extended periods. If running a fan ap-
proaching this amount of current draw (>25A), SPAL USA recommends that the installa-
tion also include a status light so the operator will be aware of fan status. See page 8 for
status light wiring.
• Because of timing sequences on the AC input wire when using a manual override
switch there will be a delay before the fan turns on/off with the switch.
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