262291-YTG-F-1009
Johnson Controls Unitary Products
9
NOTE: All gas units are two-stage heating.
First stage is 50% of total.
S.S.E. = Steady State Efficiency (80%) - output divided by input.
TABLE 1: SOUND POWER RATING
1
UNIT
SIZE
CFM
ESP
BLOWER
SOUND POWER (db 10
-12
Watts)
Octave Band Centerline Frequency (Hz)
SWL
dB(A)
dB(A)
@
10Ft.
2
IWG
RPM
BHP
63
125
250
500
1,000
2,000
4,000
8,000
WJ180
6,000
1.00
1,080
4.60
99
99
89
82
84
77
72
67
89
56
WJ240
8,000
1.00
1,120
6.65
102
102
92
85
87
80
75
70
92
59
WJ300
10,000
1.30
1160
12.5
108
108
98
91
93
86
81
76
98
65
1.
These values have been accessed using a model of sound propagation from a point source into the hemispheric\free field. The
dBA values provided are to be used for reference only. Calculation of dBA values cover matters of system design and the fan
manufacture has no way of knowing the details of each system. This constitutes and expectation to any specification or guarantee
requiring a dBA value or sound data in any other form than sound power level ratings.
2.
At a distance of 10 feet from the blower.
TABLE 2: CAPACITY RATINGS
1
1.
Certified in accordance with the Unitary Large Equip-
ment certification program AHRI Standard 340/360 (for-
merly ARI 340/360). (Does Not Include WJ300*
Models).
MODEL
MBH
EER
2
2.
EER = Energy Efficiency Ratio at full load - the cooling
capacity in Btu’s per hour (Btuh) divided by the power
input in watts, expressed in Btuh per watt (Btuh/watt).
IPLV
3
COOLING ONLY
WJ180C00
180
12.3
13.6
WJ240C00
240
11.5
12.3
WJ300C00
300
10.4
11.3
COOLING WITH GAS HEAT
WJ180N/S
180
12.3
13.6
WJ240N/S
240
11.5
12.3
WJ300N/S
300
10.4
11.3
COOLING WITH ELECTRIC HEAT
WJ180E18
180
12.3
13.6
WJ180E36
180
12.3
13.6
WJ180E54
178
12.1
13.3
WJ180E72
178
12.1
13.3
WJ240E18
240
11.5
12.3
WJ240E36
240
11.5
12.3
WJ240E54
238
11.3
12.0
WJ240E72
238
11.3
12.0
WJ300E18
300
10.4
11.3
WJ300E36
300
10.4
11.3
WJ300E54
298
10.2
11.1
WJ300E72
298
10.2
11.1
3.
IPLV = Integrated Part Load Value.
TABLE 3: GAS HEAT RATINGS
MODEL
MBH INPUT
MBH OUTPUT
WJ180N/S24
300
240
WJ180N/S32
400
320
WJ240N/S24
300
240
WJ240N/S32
400
320
WJ300N/S24
300
240
WJ300N/S32
400
320
For units with VFD and electric or gas heat, the
speed of the indoor blower motor continues to be
controlled by duct static pressure via the VAV con-
trol board.
If there are VAV boxes present in the duct system,
the boxes must be driven to the full-open position
using a customer-supplied power source to assure
adequate airflow across electric heating elements or
gas heat exchanger tubes.