Carrier WeatherMaker 48A020 Installation Instructions Manual page 2

CAUTION
DO NOT re-use compressor oil or any oil that has been
exposed to the atmosphere. Dispose of oil per local codes and
regulations. DO NOT leave refrigerant system open to air any
longer than the actual time required to service the equipment.
Seal circuits being serviced and charge with dry nitrogen to
prevent oil contamination when timely repairs cannot be com-
pleted. Failure to follow these procedures may result in dam-
age to equipment.
WARNING
Disconnect gas piping from unit when pressure testing at pres-
sure greater than 0.5 psig. Pressures greater than 0.5 psig will
cause gas valve damage resulting in hazardous condition. If
gas valve is subjected to pressure greater than 0.5 psig, it must
be replaced before use. When pressure testing field-supplied
gas piping at pressures of 0.5 psig or less, a unit connected to
such piping must be isolated by closing the manual gas
valve(s).
WARNING
CARBON-MONOXIDE POISONING HAZARD
Failure to follow instructions could result in severe personal
injury or death due to carbon-monoxide poisoning, if com-
bustion products infiltrate into the building.
Check that all openings in the outside wall around the vent
(and air intake) pipe(s) are sealed to prevent infiltration of
combustion products into the building.
Check that furnace vent (and air intake) terminal(s) are not
obstructed in any way during all seasons.
AVERTISSEMENT
RISQUE D'INTOXICATION AU MONOXYDE DE
CARBONE
Si ces directives ne sont pas suivies, cela peut entraîner des
blessures graves ou une intoxication au monoxyde de
carbone pouvant causer la mort, si des produits de
combustion s'infiltrent dans le bâtiment.
Vérifier que toutes les ouvertures pratiquées dans le mur
extérieur autour du ou des tuyaux d'évent (et de la prise
d'air) sont scellées de manière à empêcher l'infiltration de
produits de combustion dans le bâtiment.
Veiller à ce que la ou les sorties de l'évent de l'appareil de
chauffage (et la prise d'air) ne soient, en aucune façon,
obstruées, quelle que soit la saison.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
Puron ® (R-410A) refrigerant systems operate at higher pres-
sures than standard R-22 systems. Do not use R-22 service
equipment or components on Puron refrigerant equipment.
FIRE HAZARD
Failure to follow this warning could result in personal inju-
ry, death, and/or property damage.
Inlet pressure tap set screw must be tightened and
NPT pipe plug must be installed to prevent gas leaks.
GAS VALVE
INLET PRESSURE
TAP SET SCREW
FIRE HAZARD
Failure to follow this warning could result in personal inju-
ry, death, and/or property damage.
Manifold pressure tap set screw must be tightened and
NPT pipe plug must be installed to prevent gas leaks.
MANIFOLD PRESSURE
TAP SET SCREW
If the information in this manual is not followed exactly, a
fire or explosion may result causing property damage, per-
sonal injury or loss of life.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
2
WARNING
WARNING
MANIFOLD
GAS VALVE
WARNING
1 / -in.
8
1 / -in.
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