Carrier 50KQL-1PD User Manual
24
OCTAVE BAND SOUND PRESSURE LEVEL (Lp)
ASSOCIATED WITH NC CURVES
WSHP sound control
Analyzing the projected sound level in the conditioned
space caused by a WSHP unit is quite involved. The key is
to have good sound power ratings (Lw) in dB on the equip-
ment to determine the ductwork, ceiling and room sound
attenuation effect.
space caused by a WSHP unit is quite involved. The key is
to have good sound power ratings (Lw) in dB on the equip-
ment to determine the ductwork, ceiling and room sound
attenuation effect.
Console units
With console units, the fan and compressor are located
within the space, and only the casing design attenuates the
transmission of sound sources into the space. The designer
should carefully review the manufacturer’s acoustical data
when selecting console units and use lower fan speeds to
minimize space noise.
within the space, and only the casing design attenuates the
transmission of sound sources into the space. The designer
should carefully review the manufacturer’s acoustical data
when selecting console units and use lower fan speeds to
minimize space noise.
Operating limits
Environment
This equipment is designed for indoor installation ONLY.
Power supply
A voltage variation of ± 10% of nameplate utilization volt-
age is acceptable.
This equipment is designed for indoor installation ONLY.
Power supply
A voltage variation of ± 10% of nameplate utilization volt-
age is acceptable.
Starting conditions
The 50KQL unit will start and operate in an ambient tem-
perature of 50 F, with entering air temperature at 50 F,
with entering water temperature at 60 F, with both air and
water at the flow rates used in the ARI/ISO Standard
13256-1 rating test, for initial start-up in winter.
NOTE: These are not normal or continuous operating
conditions. Such a start-up should be used to bring the
building space up to occupancy temperature.
perature of 50 F, with entering air temperature at 50 F,
with entering water temperature at 60 F, with both air and
water at the flow rates used in the ARI/ISO Standard
13256-1 rating test, for initial start-up in winter.
NOTE: These are not normal or continuous operating
conditions. Such a start-up should be used to bring the
building space up to occupancy temperature.
AIR LIMITS
WATER LIMITS
LEGEND
*Requires optional extended range insulation package when operating below the dew point.
NOTES:
NOTES:
1.
Minimum Air and Water conditions can only be used at ARI/ISO 13256-1 flow rates.
2.
The 50KQL units may have up two values at maximum or minimum with all other param-
eters at normal conditions.
eters at normal conditions.
Solenoid valves
In applications using variable flow pumping, solenoid
valves can be factory installed and operated from the con-
trol board in the Aquazone™ WSHP unit.
valves can be factory installed and operated from the con-
trol board in the Aquazone™ WSHP unit.
Freeze protection
Applications where systems are exposed to outdoor
temperatures below freezing (32 F) must be protected from
freezing. The most common method of protecting water
systems from freezing is adding glycol concentrations into
the water. Use design care when selecting both the type
and concentrations of glycol due to the following:
• Equipment and performance may suffer with high con-
temperatures below freezing (32 F) must be protected from
freezing. The most common method of protecting water
systems from freezing is adding glycol concentrations into
the water. Use design care when selecting both the type
and concentrations of glycol due to the following:
• Equipment and performance may suffer with high con-
centrations of glycol and other antifreeze solutions
• Loss of piping pressure may increase greatly, resulting
in higher pumping costs
• Higher mixture viscosity may cause excess corrosion
and wear on the entire system
• The water’s acidity may be greatly increased, promoting
corrosion
Glycol promotes galvanic corrosion in systems of dissimilar
metals. The result is corrosion of one metal by the other,
causing leaks.
metals. The result is corrosion of one metal by the other,
causing leaks.
Electrical data
LEGEND
NOISE
CRITERIA
CURVES
OCTAVE BAND SOUND PRESSURE LEVEL (Lp)
Frequency (Hz)
63
125
250
500
1000
2000
4000
8000
NC-15
49
36
26
17
17
14
12
11
NC-20
52
41
33
27
22
19
17
16
NC-25
54
45
38
31
27
24
22
21
NC-30
58
49
41
36
31
29
28
27
NC-35
61
53
45
40
36
34
33
32
NC-40
64
57
50
45
41
39
38
37
NC-45
67
61
54
49
46
44
43
42
NC-50
71
64
58
54
51
49
48
47
NC-55
74
68
63
58
56
54
53
52
NC-60
77
71
67
63
61
59
58
57
NC-65
80
75
71
68
66
64
63
62
50KQL
Cooling
Heating
Min. Ambient Air
50 F
50 F
Rated Ambient Air
80 F
66 F
Max. Ambient Air
100 F
86 F
Min. Entering Air
50 F
50 F
Rated Entering Air, db/wb
80/66 F
68 F
Max. Entering Air, db/wb
100/82 F
80 F
50KQL
Cooling
Heating
Min. Entering Water
30 F*
21 F*
Normal Entering Water
86 F
70 F
Max. Entering Water
110 F
90 F
db
—
Dry Bulb
wb —
Wet Bulb
50KQL
VOLTS-PHASE
(60 Hz)
VOLTAGE
COMPRESSOR
FAN MOTOR
FLA
TOTAL UNIT
FLA
MIN CIRCUIT
AMP
MAX FUSE/
HACR
Min
Max
RLA
LRA
07
115-1
104
127
7.1
46.5
0.50
7.6
9.3
15
208/230-1
187
253
3.7
19.0
0.33
4.0
5.0
15
265-1
239
291
2.8
16.0
0.35
3.1
3.8
15
09
115-1
104
127
9.0
46.5
1.30
10.3
12.5
20
208/230-1
187
253
4.7
23.0
0.50
5.2
6.3
15
265-1
239
291
3.8
16.0
0.50
4.3
5.3
15
12
115-1
104
127
10.6
63.0
1.30
11.9
14.6
25
208/230-1
187
253
6.1
29.0
0.50
6.6
8.1
15
265-1
239
291
4.8
21.6
0.50
5.3
6.5
15
15
208/230-1
187
253
7.0
33.2
1.10
8.1
9.8
15
265-1
239
291
5.4
29.0
1.00
6.4
7.8
15
19
208/230-1
187
253
7.7
38.0
1.10
8.8
10.7
15
265-1
239
291
5.8
29.0
1.00
6.8
8.2
15
FLA
— Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
LRA
LRA
— Locked Rotor Amps
RLA
— Rated Load Amps
Application data (cont)