Durastar DRAEF Installation Manual
INSTALLATION INSTRUCTIONS
FOR CASED/UNCASED COILS FOR GAS FURNACES:
DRAEF: Featuring Industry-Standard
(-)CF: Refrigerant
WARNING
These instructions are intended as an aid to qualified licensed
service personnel for proper installation, adjustment and
operation of this unit. Read these instructions thoroughly before
attempting installation or operation. Failure to follow these
instructions may result in improper installation, adjustment,
service or maintenance possibly resulting in fire, electrical
shock, property damage, personal injury or death.
ACCREDITED
92-100105-34-00
TABLE OF CONTENTS
1.0 Safety Information .................................................. 3
2.0 General Information ................................................. 4
2.1 Inspection .................................................... 4
2.2 Codes & Regulations ........................................... 4
2.3 Replacement Parts ............................................. 5
2.4 Model Number Explanation ...................................... 5
2.5 Coil Specifications ............................................. 6
2.5A Coil Specifications: Dimensions & Weights ...................... 6
2.5B Coil Specifications: Airflow Pressure Drop ...................... 7
3.0 Installation ........................................................ 8
3.1 Applications .................................................. 8
3.2 Refrigerant Connections ........................................ 11
3.3
TXV Sensing Bulb ............................................ 11
3.4
Condensate Drain Tubing ...................................... 11
3.5
4.0 Maintenance ..................................................... 12
4.1 Air Filter ...................................................... 12
4.2 Indoor Coil - Drain Pan - Drain Line ................................ 12
5.0 Accessories ...................................................... 13
5.1 Plenum Adapter Accessory ....................................... 13
5.2 RXBC- Empty Indoor Coil Casing .................................. 14
5.3 R-22 TXV Conversion Kits ....................................... 14
Flanges ................................................ 12
Duct
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1.0 SAFETY INFORMATION
WARNING
!
These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit. Read these
instructions thoroughly before attempting installation or operation. Failure
to follow these instructions may result in improper installation, adjustment,
service or maintenance possibly resulting in fire, electrical shock, property
damage, personal injury or death.
WARNING
!
PROPOSITION 65: This appliance contains fiberglass insulation. Respirable
particles of fiberglass are known to the State of California to cause cancer.
All manufacturer products meet current Federal OSHA Guidelines for safety.
California Proposition 65 warnings are required for certain products, which are
not covered by the OSHA standards.
California’s Proposition 65 requires warnings for products sold in California
that contain or produce any of over 600 listed chemicals known to the State of
California to cause cancer or birth defects such as fiberglass insulation, lead
in brass, and combustion products from natural gas.
All “new equipment” shipped for sale in California will have labels stating that
the product contains and/or produces Proposition 65 chemicals. Although we
have not changed our processes, having the same label on all our products
facilitates manufacturing and shipping. We cannot always know “when, or if”
products will be sold in the California market.
You may receive inquiries from customers about chemicals found in, or produced by, some of our heating and air-conditioning equipment, or found in
natural gas used with some of our products. Listed below are those chemicals
and substances commonly associated with similar equipment in our industry
and other manufacturers.
• Glass Wool (Fiberglass) Insulation
• Carbon Monoxide (CO).
• Formaldehyde
• Benzene
More details are available at the websites for OSHA (Occupational Safety and
Health Administration), at www.osha.gov and the State of California’s OEHHA
(Office of Environmental Health Hazard Assessment), at www.oehha.org.
Consumer education is important since the chemicals and substances on the
list are found in our daily lives. Most consumers are aware that products present safety and health risks, when improperly used, handled and maintained.
CAUTION
For horizontal applications, the horizontal drain pan must be located under the
indoor coil. Failure to place the pan under the coil can result in property damage.
CAUTION
It is recommended that an auxiliary/secondary drain pan be installed under units
containing evaporator coils that are located in any area of a structure where
damage to the building or building contents may occur as a result of an overflow
of the coil drain pan or a stoppage in the primary condensate drain piping.
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2.0. GENERAL INFORMATION
2.1 INSPECTION
Immediately upon receipt, all cartons, and contents should be inspected for transit damage. Units with damaged cartons should be opened immediately. If damage is found, it
should be noted on the delivery papers and a damage claim filed with the last carrier.
Shipping damage is not covered by the warranty.
• After unit has been delivered to job site, remove carton taking care not to damage
unit.
• Check the unit rating plate to be sure equipment matches what is required for the job
specification.
• Read the entire instructions before starting the installation. This is particularly important if this is the first installation for this specific model series.
• Many installation steps done prior to installing the unit can save time and simplify the
installation.
2.2 CODES/REGULATIONS
Units should be installed in accordance with any local or national codes which may
apply. Latest editions are available from: “National Fire Protection Association, Inc.,
Batterymarch Park, Quincy, MA 02269.”
These publications are:
• ANSI/NFPA Latest Edition (NEC) National Electrical
Code.
• NFPA90A Installation of Air conditioning and
Ventilating Systems.
• NFPA90B Installation of Warm Air Heating and Air
Condition ing Systems.
2.3 REPLACEMENT PARTS
Any replacement part must be the same as or an approved alternate to the original part
supplied. The manufacturer will not be responsible for replacement parts not designed to
physically fit or operate within the design parameters the original parts were selected for.
When ordering replacement parts, it is necessary to order by part number and include
the complete model number and serial number from the coil rating plate. (See parts list
for unit component part numbers. Parts are available through the local distributor.)
4
2.4 MODEL NUMBER EXPLANATION
FIGURE 1
MODEL NUMBER EXPLANATION
DR A E F 24 17 S T A M CC A
ORIENTATION
M-Multiposition
U-Upflow/vertical
H-Horizontal
MAJOR SERIES
A - 1ST DESIGN
METERING
DEVICE
T - TXV
EFFICIENCY
S - STANDARD EFF.
M - MID EFF.
H - HIGH EFF.
MINOR
SERIES**
A - 1ST
DESIGN
CASING
CC - CASED COIL
AVAILABLE CASED
COILS
DRAEF2414STAMCCA
DRAEF2417STAMCCA
DRAEF3617STAMCCA
DRAEF3621MTAMCCA
DRAEF3621STAMCCA
DRAEF4821MTAMCCA
DRAEF4821STAMCCA
DRAEF6021STAMCCA
DRAEF6024STAMCCA
TYPE
F - FURNACE COIL
H - AIR HANDLER COIL
PRODUCT CATEGORY
E - EVAPORATOR COIL
A - 410A
B - FUTURE LOW GWP
BRAND
DR - DURASTAR
WIDTH
14 - 14” 21 - 21”
17 - 17.5” 24 - 24.5”
CAPACITY
24 - 2 TON 48 - 4 TON
36 - 3 TON 60 - 5 TON
5
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