Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 167
12.3 Heated Breather
12.3.1 Heated Breather Operation
For applications operating in temperatures below –25°C there is a
requirement for a heated breather canister and insulated hose to be fitted to
all Tier 4 Final/Stage IV products. The thermostatically controlled heater is
configured to turn on at –12 and off at –1°C and prevents water vapour from
freezing within the breather system under cold climate conditions.
Figure 12.8 Heated Breather Electrical Circuit
12.3.2 Heated Breather Configuration
No electrical configuration is required using PERKINS EST for this feature to
function.
Pin 1
Pin 2
Pin 3
Pin 4
Pin-outs
Pin 1 = 24V power (red)
Pin 2 = bridge (blue)
Pin 3 = 12V power (white)
Pin 4 = 12V & 24V ground
(black)
24V heater connections
Pins 1 & 4
12V heater connections
Pins 3 & 4
plus bridge of pins 1 & 2
1
2 3 4