POLYURETHANE
MACHINERY
CORPORATION
PHDX-2 SERVICE MANUAL
6. INSTALLATION
6.2
HOSE HEAT TRANSFORMER
The Hose Heat Transformer offers the ability of connecting to different output voltages
depending on the total length of the Heated Hose in use, maximizing the heating
ability of the Heated Hose.
The factory setting is 18 volts for use with 60 feet
of Heated Hose. Before starting the Proportioner, ensure the setting matches the
Heated Hose length installed. If Heated Hose sections are added or removed, the Tap
setting should be changed to a setting which will limit the maximum amperage in the
Heated Hose to 52 amps. The suggested settings are listed in the table below.
RECOMMENDED TAP SETTINGS
Tap
Hose Length (Feet)
Hose Length (Meters)
120V
410
125.0
105V
360
109.7
90V
310
94.5
75V
260
79.5
60V
210
64.0
45V
160
48.8
30V
110
33.5
18V
60
18.3
Figure 16: Transformers
*90V transformers (shown above) allow for a maximum hose length of 310 ft (94.5 m). 120V
transformers allow for a maximum hose length of 410 ft (125 m).
REVISION 1.1
29
