Graco 3A1705J important safety instructions He Vb He Va

Overview

Coolant only flows through the secondary heat exchangers when the heat exchanger control valves (VA, VB) are open and the A and B component temperatures are below the target temperatures set on the ADM. See Fig. 24.

When the control valves (VA, VB) close, the A and B material has reached target temperature. Coolant flows through the bypass control valve (VC), circulation pump (CP), sight glass (SG), proportioner coolant fill bottle (HF), and back to the heat exchanger in the engine coolant loop. See Fig. 23

CP SG

VC

HE VB HE VA

Proportioner Coolant Loop — A and B Valves Closed (not heating material)

Figure 23

CPSG

VC

HE VB HE VA

Proportioner Coolant Loop — A and B Valves Open (heating material)

Figure 24

32 3A1705J