Lennox CHA16 User Manual

Page 4
SPECIFICATIONS  CHA161853
Model No.
CHA161853
*
ARI
Total cooling capacity (btuh) 178,000
*ARI
Standard
Total unit watts 20,300
Standard
360
EER (Btuh/Watts) 8.8
360
Ratings
Integrated Part Load Value 9.6
Refri
g
erant
Stage 1
Refrigerant
(22)
Stage 2
7 lbs. 9 oz.
(22)
Charge
Stage 3
7
lbs
.
9
oz
.
Blower wheel nominal diameter x width (in.) 18 x 18
Factory
Nominal motor horsepower 3
Evaporator
Factory
Installed
Maximum useable horsepower 3.45
E
vapora
t
or
Blower
Installed
**
Drives
Voltage & Phase 208/230/460v3ph
Blower
and
**Dri
v
es
RPM Range 610  780
and
Drive
Sti
Factory
Nominal motor horsepower 5
Section
Factory
Installed
Maximum useable horsepower 5.75
Installed
**
Drives
Voltage & Phase 208/230/460v3ph
**Dri
v
es
RPM Range 770  980
Evaporator
Net face area (sq. ft.) 16.0
Evaporator
Coil
Tube diameter (in.) & No. of rows 3/8  3
C
o
il
Fins per inch 13
Condenser
Net face area (sq. ft.) 30.5
Condenser
Coil
Tube diameter (in.) & No. of rows 3/8  2
C
o
il
Fins per inch 20
Diameter (in.) & No. of blades (2) 26  4
Condenser
Air volume (cfm) 12,000 Total
Condenser
Fan(s)
Motor horsepower (2) 1
Fan(s)
Motor watts 2200 Total
Condensate Drain Size mpt (in.) 1
No. & Size of filters (in.) (4) 24 x 24 x 2
Electrical characteristics 208/230 to 460 volt  60 hertz  3 phase
*Rated in accordance with ARI Standard 360; 95F outdoor air temperature and 80F db/ 67F wb entering evaporator air; minimum external duct static pressure.
**Using total air volume and system static pressure requirements determine from blower tables rpm and bhp required. Maximum usable hp of motors furnished
by Lennox are shown. If motors of comparable hp are used be sure to keep within the service factor limitations outlined on the motor nameplate.
OPTIONAL ACCESSORIES  CHA161853 (Ordered Extra)
Unit Model No. CHA161853
Model No. ECH16185/275
Kw input range 1530456075
Electric
Heat
*F
208/230 volt (with 3 hp motor) 29H26
Heat
*Fuse
Block
208/230 volt (with 5 hp motor) 29H27
Block
460 volt 29H31
Roof Mounting Frame RMF16185 (12H05)
Economizer Dampers with Gravity Exhaust No. & size of filters (in.) REMD16M185 (40H14) (2) 25 x 25 x 1
Differential Enthalpy Control 54G44
Model No
208/230 volt PED16185 (12H16)
Power
Model No.
460 volt PED16185 (12H17)
Power
Exhaust
Diameter (in.) & No. of Blades (2) 16  5
Exhaust
Fans
(Down

Flo Only)
Total air volume (cfm) 4200
(D
own
Fl
o
O
n
l
y
)
Motor Horsepower (2) 1/4
Watts Input (total) 500
Horizontal Supply and Return Air Kit (LB55756BD) 12H04
Ceiling Supply and
StepDown RTD11185 (29G06)
C
e
ili
ng
S
upp
l
y an
d
Return Air
Diffusers
Flush FD11185 (29G10)
Diffusers
Transition SRT16185 (97H12)
Outdoor Air Dampers  No. & size of filters (in.) OAD16185 (12H03) (1) 25 x 27 x 1
Automatic OAD16 Damper Kit 35G21
Low Ambient Control Kit (LB57113BK) 16J88
*Must be ordered extra. Factory installed heaters will have fuse block installed. Fuse block must be field installed in field installed heaters.

Lennox CHA16 Specifications

General

Brand	Lennox
Model	CHA16
Category	Air Conditioner
Language	English