13
Installation Manual
MST
MANUAL SINGLE TANK FLUSH SELECTOR
ELECTRICAL INSTALLATION
Refer to figure 10 for an electrical
diagram and proceed with the following
steps:
1. If the Hale FoamMaster MST is being
installed as a retrofit, remove the plug
from the Hale FoamMaster foam pump
distribution box.
CAUTION:
Use the silicone sealer
provided with the Hale FoamMaster
system to insulate the terminal strip
connection screws and prevent
corrosion.
2. Use minimum 16 AWG Type SXL or
GXL (SAE J1128) wire to connect the low
tank level sensor to the terminal block
on the distribution box. The low tank
level sensor is not polarity sensitive
therefore terminal connections are not
specific. When making splices to extend
the low tank sensor wires make sure the
splices are sealed using an adhesive
filled heat shrink tubing. Where two
wires exit the heat shrink tubing pinch
the tubing while heating the tubing to
make sure the adhesive seals around
both wires. Insulate and seal the
terminal strip connections using the
silicone sealer provided.
3. Connect the two wire Packard
WeatherPack connector on the Hale
FoamMaster MST to the MST wiring
harness. Route the MST wiring harness to
the Hale FoamMaster location. Secure
cable extension to apparatus. Connect
the 4-pin male cable connector from
the MST wiring harness to the
connection point labeled
ACCESSORY
on the distribution box.
If the MST wiring harness will not reach
the Hale FoamMaster distribution box an
extension harness is available to extend
this cable.
To more accurately monitor foam
concentrate level, separate foam
concentrate tank level gauges, that
show the actual level of foam
concentrate in the foam tank, can also
be installed.
