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John Wood SERIES 100 User Manual

Page 5

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5

LOCATING THE HEATER

WARNING

THERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH AS

GAS WATER HEATERS IN ROOMS, GARAGES OR OTHER AREAS

WHERE GASOLINE, OTHER FLAMMABLE LIQUIDS OR ENGINE

DRIVEN EQUIPMENT OR VEHICLES ARE STORED, OPERATED OR

REPAIRED. FLAMMABLE VAPORS ARE HEAVY AND TRAVEL ALONG

THE FLOOR AND MAY BE IGNITED BY THE HEATER’S IGNITER OR

MAIN BURNER FLAMES CAUSING FIRE OR EXPLOSION. SOME LOCAL

CODES PERMIT OPERATION OF GAS APPLIANCES IF INSTALLED 18

INCHES (46 cm) OR MORE ABOVE THE FLOOR. THIS MAY REDUCE

THE RISK IF LOCATION IN SUCH AN AREA CANNOT BE AVOIDED.

THE HEATER SHALL BE LOCATED OR PROTECTED SO IT IS NOT

SUBJECT TO PHYSICAL DAMAGE BY A MOVING VEHICLE.

DO NOT LOCATE THE HEATER WHERE NOISE FROM THE EXHAUST

OR INTAKE WILL BE OBJECTIONABLE. THIS INCLUDES LOCATIONS

CLOSE TO OR ACROSS FROM WINDOWS AND DOORS. AVOID

ANCHORING THE VENT AND INTAKE PIPES DIRECTLY TO FRAMED

WALLS, FLOORS OF CEILINGS UNLESS RUBBER ISOLATION PIPE

HANGERS ARE USED. THIS PREVENTS ANY VIBRATIONS FROM

BEING TRANSMITTED INTO THE LIVING SPACES.

WARNING

FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY OTHER

POTENTIAL FIRE HAZARDOUS ARTICLES MUST NEVER BE PLACED ON

OR ADJACENT TO THE HEATER. OPEN CONTAINERS OF FLAMMABLE

MATERIAL SHOULD NOT BE STORED OR USED IN THE SAME ROOM

WITH THE HEATER.

When installing the heater, consideration must be given to proper location.

Location selected should be as close to the intake and exhaust termination

points as practicable, with adequate air supply and as centralized with the

piping system as possible.

THE HEATER MUST NOT BE LOCATED IN AN AREA WHERE IT WILL BE

SUBJECT TO FREEZING.

LOCATE IT NEAR A FLOOR DRAIN. THE HEATER SHOULD BE LOCATED

IN AN AREA WHERE LEAKAGE FROM THE HEATER OR CONNECTIONS

WILL NOT RESULT IN DAMAGE TO THE ADJACENT AREA OR TO LOWER

FLOORS OF THE STRUCTURE.

When such locations cannot be avoided, it is recommended that a suitable

drain pan, adequately drained, be installed under the appliance.

Water heater life depends upon water quality, water pressure and the

environment in which the water heater is installed. Water heaters are

sometimes installed in locations where leakage may result in property

damage, even with the use of a drain pan piped to a drain. However,

unanticipated damage can be reduced or prevented by a leak detector or

water shut-off device used in conjunction with a piped drain pan. These

devices are available from some plumbing supply wholesalers and retailers,

and detect and react to leakage in various ways:

• Sensors mounted in the drain pan that trigger an alarm or turn off the

incoming water to the water heater when leakage is detected.

• Sensors mounted in the drain pan that turn off the water supply to the entire

home when water is detected in the drain pan.

• Water supply shut-off devices that activate based on the water pressure

differential between the cold water and hot water pipes connected to the

water heater.

• Devices that will turn off the gas supply to a gas water heater while at the

same time shutting off its water supply.

WARNING

THIS WATER HEATER IS A CONDENSING UNIT AND REQUIRES A DRAIN
TO BE LOCATED IN CLOSE PROXIMITY TO ALLOW THE CONDENSATE
TO DRAIN SAFELY. THE CONDENSATE DRAINS FROM THE UNIT AT
THE EXHAUST ELBOW LOCATED AT THE BOTTOM OF THE UNIT. NOTE:
IT IS IMPORTANT THAT THE CONDENSATE HOSE NOT BE ELEVATED
ABOVE THE EXHAUST ELBOW (SEE FIGURE 3). THE CONDENSATE
BUILD-UP WILL BLOCK THE EXHAUST OUTLET, WHICH WILL CAUSE
IMPROPER OPERATION.

FIGURE 3.

WARNING

DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDER WATER.
IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT
THE APPLIANCE AND TO REPLACE ANY PART OF THE CONTROL
SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER.

CLEARANCES

These heaters are approved for installation on combustible flooring in an
alcove when the minimum clearances from any combustion construction are
followed as indicated in Figure 4.

In all installations the minimum combustible clearances from any vent piping
shall be 0". Vent piping passing through a combustible wall or ceiling must
be a continuous run (no joints).

A service clearance of 24" (61 cm) should be maintained from serviceable
parts such as relief valves, flue baffles, flue damper devices, thermostats,
cleanout openings or drain valves.

Always disconnect electrical power before servicing the unit.

FIGURE 4.

*ILLUSTRATION OF MINIMUM COMBUSTIBLE CLEARANCES IN AN

ALCOVE.

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