Graco 309524N Marine Heating System User Manual


 
Installation
10 309524N
Electrical Connections
Requirements For All Installations
1. The voltage supply must agree with the maximum
heater voltage and amperage. See Models, page 2.
2. Conductors used for supply connection must be
suitable for at least 221°F (105°C).
Hazardous Location Installation
Requirements
1. The heater connection must be made using one of
the following options:
a. Cable entries of a certified flameproof model.
b. Threaded metal conduits.
2. Unused threaded holes must be sealed by certified
flameproof plugs, which must be screwed in with a
minimum of 5 full threads engaged and an 8 mm
length of engaged threads.
WARNING
Read warnings, page 4. Install heater in compliance
with all applicable codes and regulations.
CAUTION
To help prevent damage, avoid spilling liquids onto
electrical components.
If this option is used, a stopping box with
compound filling of a certified flameproof
model must be placed at the entry of the
heater.
The above accessories are not provided by
Graco. Make sure that accessories are appropri-
ate for the conditions of use.