Specification Sheet

Hot-Shot™
NOTE: Systems using cast iron radiators, large iron pipes, and grav-
ity circulation can not be thawed using the Hot-Shot.
1. Separate and cap all unfrozen zones.
2. Separate frozen zone of the system.
3. Put a non-conductive, non-flammable insulator between pipe
ends.
4. Turn on heater, pump, and Hot-Shot (connected as shown be-
low).
5. Collect thawing water in a container.
6. When thawed, shut of Hot-Shot, heater, and system pump.
7. Quickly reconnect all pipes.
8. Check heat in all zones.
6
SPECIAL OPERATIONS
THAWING HOT WATER HEATING SYSTEMS
(Winter/Summer Hook up)
The Hot-Shot is intended for use on a direct pipeline with an unfrozen
high pressure area upstream of the blockage and an open faucet
downstream. USE OF THIS SYSTEM ON A HOT WATER HEATING
SYSTEM MAY BE INEFFECTIVE.
NOTE: Hot water heating systems use low pressure pumps. More
heat will be required before the warm water can seep past the ice and
continue the thawing process.
NOTE: Heat developed in the frozen section may only be 1/3 to 1/2
of the heat produced by the Hot-Shot and may not be sufficient to
thaw the pipe. The current in the frozen section is reduced as the
pipes in the hot water heating system are interconnected and offer
alternative electrical paths, reducing the concentrated effect of the Hot
-Shot.
MAKE SURE MACHINE IS DISCONNECTED FROM
POWER SOURCE BEFORE CONNECTING CABLES!
THAWING COPPER BASEBOARD SYSTEMS
1. Lift or remove any sheet metal pipe covers so that they are not
touching the pipe.
2. Make sure the copper pipe is separated from any metal hangers
or supports by a non-conductive, non-flammable insulator.
3. Attach the Hot-Shot clamps directly to the copper pipe (see figure
below).
MAKE SURE MACHINE IS DISCONNECTED FROM
POWER SOURCE BEFORE CONNECTING CABLES!
PREVENT REFREEZING OF PIPES
A pipe will freeze when it cools below 32 degrees F. Take the follow-
ing steps to prevent freezing:
1. Insulate all cracks and openings.
2. Wrap pipes with thermostatically controlled heating tape.
3. Let water trickle through the pipe on cold nights. A flow of one
gallon per hour is enough to prevent freezing.
THAWING PIPES WITH TWO HOT-SHOTS
Whenever using the Hot-Shot it is important to monitor the equipment
during the thawing operation. Use a standard AC clamp on Amprobe
meter to check the heating current. Current should be between 200
and 400 amps. If the current is less than 200 amps, a second Hot-
Shot can be used to increase the current.
Note: The second Hot-Shot will require a second 20 amp 120 volt AC
power supply. (The Hot-Shot 300 requires a 15 amp 120 volt AC
power supply.)
REMOVE ALL FLAMMABLE MATERIALS, GASES,
ETC. FROM THE IMMEDIATE AREA. WEAR HEAVY
GLOVES AND EYE PROTECTION.
MAKE SURE THAT THE POLARITY OF THE SECOND UNIT IS
CORRECT AND HAS BEEN TESTED PRIOR TO USE.