Physical Data; General Installation Information - WaterFurnace AT022C/D Installation And Maintenance Manual

Physical Data

General
Installation
Information
2
PREMIER 2 SINGLE-SPEED INSTALLATION AND MAINTENANCE MANUAL
MODEL
AT019D
Fan Wheel
9 x 7
Fan Motor
ECM2-1/2
Compressor
Rotary
Air Coil: (Vertical)
Dimensions
19 x 20
Area (sq. ft.)
2.6
Rows
3
Air Coil: (Horizontal)
Dimensions
18 x 21
Area (sq. ft.)
2.6
Rows
3
R22 (oz.)
43.0
Filter-1" (Vertical)
20 x 24
Throwaway
EAF2024
Electrostatic
Filter-1" (Horizontal)
18 x 24
Throwaway
EAF1824
Electrostatic
Weight (lbs.)-Vertical
189
Weight (lbs.)-Horizontal
210
* Optional 1 hp ECM2 fan motor available
UNIT LOCATION
CAUTION: Do not locate in areas where ambient conditions are not maintained within
45 ° -95 ° F and less than 75% relative humidity.
Locate the unit in an indoor area that allows for easy removal of the filter and access panels.
Location should have enough space for service personnel to perform maintenance or repair.
Provide sufficient room to make water, electrical and duct connection(s). If the unit is located in a
confined space, such as a closet, provisions must be made for return air to freely enter the space
by means of a louvered door, etc. Any access panel screws that would be difficult to remove
after the unit is installed should be removed prior to setting the unit. On horizontal units, allow
adequate room below the unit for a condensate drain trap and do not locate the unit above
supply piping. These units are not approved for outdoor installation and, therefore, must be
installed inside the structure being conditioned.
SETTING VERTICAL UNITS
Vertical units are available in left or
right air return configurations. Top flow
vertical units should be mounted level on a
vibration absorbing pad slightly larger than
the base to provide isolation between the
unit and the floor. It is not necessary to
anchor the unit to the floor (see Figure 1).
Bottom flow units should be mounted level
and well sealed to the floor to prevent
air leakage.
NOTE: If access to the left side of the
unit will be limited after installation, remove the two mounting screws on the left side of the
control box before setting the unit (leave the two front mounting screws intact). This will allow the
control box to be removed with only the two front mounting screws for future service.
SETTING HORIZONTAL UNITS
CAUTION: Do not use rods smaller than 3/8" diameter since they may not be strong
enough to support the unit. The rods must be securely anchored to the ceiling.
Horizontal units are available with side or end discharge and may be field converted from one
to the other by replacing the discharge panel (TB920813) with a new panel which must be
ordered separately. Horizontal units are normally suspended from a ceiling by four 3/8" diameter
threaded rods (six on ATH040-066). The rods are usually attached to the unit by hanger bracket
kits furnished with each unit.
AT022C/D AT028D AT034D AT040D AT046D AT056D AT066D
9 x 7 9 x 7 9 x 7 11 x 10
ECM2-1/2* ECM2-1/2*
ECM2-1/2 ECM2-1/2
Scroll Scroll
Rotary Scroll
24 x 20 24 x 20 27 x 20 28 x 25
3.8 4.9
3.3 3.3
3 3 3 3
18 x 30 20 x 35
18 x 27 18 x 27
3.4 3.4 3.8 4.9
3 3 3 3
65.0 85.0
58.0 62.0
24 x 24 2-14 x 24 2-14 x 30
EAF2424 EAF2428 EAF2830
2-18 x 18 2-18 x 18 1-20 x 12, 1-20 x 25
EAF1836 EAF1836 EAF2037
274 320
252 258
270 337
256 260
11 x 10 11 x 10 11 x 10
ECM2-1/2* ECM2-1 ECM2-1
Scroll Scroll Scroll
28 x 25 32 x 25 36 x 25
4.9 5.6 6.3
3 3 3
20 x 35 20 x 40 20 x 45
4.9 5.6 6.3
3 3 3
88.0 116.0 98.0
2-10x30 3-12x30
1-12x30
EAF2042 EAF2048
1-18x20 2-24x20
1-24x20
EAF2042 EAF2048
336 399 426
339 429 456
Vibration
Absorbing
Mesh
Air
Pad
Figure 1 – Vertical Unit Mounting