Hatco Powermite PMG-100 Installation And Operating Manual page 4

IMPORTANT SAFETY INFORMATION
WARNING
Should overheating occur or the gas supply fail to shut
off, turn off the manual gas control valve to the appliance.
Use only copper plumbing material. Non-copper plumbing
material may create an unsafe condition.
Units are equipped with a high temperature limit safety
switch that will shut off the power if the unit overheats.
Contact an Authorized Hatco Service Agent if the high
temperature limit safety switch cannot be reset or
continues to trip.
Before performing any maintenance/service, care should
be taken that any of the discharged water does not come
into contact with the operator or surrounding surfaces.
Water can be extremely hot and can cause severe scalding
and damage to the property.
If relief valve discharges periodically, do not plug valve.
If replacing valve does not stop discharge, contact an
Authorized Hatco Service Agent or the Hatco Service
Department.
Install booster water heater in a horizontal position with
the base parallel to the floor and the inlet connection at the
lowest point. Improper installation could create an unsafe
condition.
Do not connect booster water heaters to domestic
(consumer) dish machines or other domestic utilized
equipment. This booster may damage domestic equipment.
This product contains fiberglass, a product known to the
state of California to cause cancer, birth defects, or other
reproductive harm.
Install booster water heater as close as possible to
a commercial dish machine. Employ re-circulation if
distance between water heater and dish machine exceeds
National Sanitation Foundation (NSF) specifications of five
(5) linear feet (1524 mm).
Refer to the BOOSTER HEATER SIZING CHART in this
manual to ensure proper sizing and avoid personal injury
and/or damage to the booster heater.
It is essential to recognize that even though a water heater
may be properly installed initially and approved, there
always exists the possibility that unknowing individuals
might alter or change the installation in a manner that
would render it unsafe. Therefore, it is important that all
safety programs provide some mechanism to assure that
these installations are inspected periodically.
This unit has no "user-serviceable" parts. If service
is required on this unit, contact an Authorized Hatco
Service Agent or contact the Hatco Service Department at
800-558-0607 or 414-671-6350.
BURN HAZARD:
• Water in unit is very hot. Wear protective gloves and
proper attire when operating to avoid injury.
• Valves supplied by Hatco are designed for high
temperature commercial operation. Do not substitute
Hatco valves with valves designed for domestic water
heaters.
Do not use anti-siphon valves or check valves on incoming
water line. Damages caused by the use of these valves on
unit will not be covered by warranty.
Do not connect booster heater directly to a boiler or
furnace coil or any other uncontrolled temperature source.
The booster heater thermostat could be damaged causing
unit to overheat.
Incoming water temperature should be minimum of 85°F
(29°C). Damage to the heater can occur if water is cooler
than 85°F (29°C).
Do not connect an expansion tank of any type to booster
heater water lines.
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
Hatco requires that two temperature/pressure gauges
(Hatco P/N 03.01.003.00) be installed to ensure proper
operation. Install one in the supply line before the pressure
reducing valve and one in the outlet line as close to the
booster heater as possible. This provides a visual check
of the water temperature and pressure before and after the
water heater.
DO NOT turn on power to the booster heater until tank has
been filled with water and all air has been vented through
the dish machine rinse nozzles. Heating elements will burn
out in seconds if operated when not immersed in water.
To avoid freezing water damage to the booster heater
when the outside temperature is below 32°F (0°C), the unit
must be left ON and the venting must be protected from
migrating cold air.
Failure to drain the heat exchanger prior to exposing it to
freezing conditions will damage the heat exchanger and
void the warranty.
The use of cellular core PVC (ASTM F891), cellular core
CPVC, or Radel (polyphenylsulfone) in nonmetallic
®
venting systems is prohibited. Covering non-metallic vent
pipe and fittings with thermal insulation is also prohibited.
Using or storing chlorine based products on or near the
booster heater may shorten the life of the unit and void the
product warranty.
If water supply pressure to the booster inlet is over 20
psi (138 kPa) during flow, install pressure reducing valve
with built-in bypass (Hatco P/N 03.02.004.00) for proper
operation of dish machine rinse nozzles.
NOTE: The pressure reducing valve must be the type equipped
with a high pressure bypass, as supplied by Hatco.
4
CAUTION
NOTICE
Form No. PMG100200M-0918