Allied 4HP14B - SOUND RATINGS; ACCESSORIES

508090-01 Issue 2032 Page 3 of 40
SOUND RATINGS
Model Sound Power
1
Estimated Sound Pressure (dBA)
2
Approximate Distance
3
3.3 Feet
(1 Meter)
6.6 Feet
(2 Meters)
9.8 Feet
(3 Meters)
4HP14B18P-50 76 68 62 58
4HP14B24P-50 76 68 62 58
4HP14B30P-50 76 68 62 58
4HP14B36P-50 76 68 62 58
4HP14B42P-50 79 71 65 61
4HP14B48P-50 80 72 66 62
4HP14B60P-50 80 72 66 62
1. Rated in accordance with AHRI standard 270 (2015). AHRI Standard 270 establishes a method of rating outdoor unitary equipment in terms of Sound Power.
2. Rated in accordance with AHRI standard 275 (2010). AHRI Standard 275 provides the calculations for estimating the A-Weighted Sound Pressure at a given distance from the equipment.
That is a more useful number because that is what humans will hear.
3. Based only on distance factor; other factors may change this value such as:
• Unit location (reflective surfaces adjacent to the unit)
• Barrier shielding sources
• Sound path/elevation
• Outside noise sources
ACCESSORIES
System Accessory Where Used Kit Number Purpose
Liquid Line Solenoid All models 60M52
Prevents liquid migration to the compressor especially for high liquid riser
applications
Low Ambient HP Units (cooling
operation)
All models 54M89
Enables cooling demand down to 30 °F. Will require freeze stat, CC
heater and TXV
Mild Ambient (heating operation) All models 11B97 Enables heating demand above 60 °F ambient
Cold Weather Control Board Integrated Feature To allow unit to operate in very low ambient conditions
Fossil Fuel Kit (Heat Pump Only) All models 1.841185 Required for furnace with heat pump installations
Hard Start
24 & 36 10J42
Scroll compressors usually do not require hard start; maybe needed for
utility brown-out or low voltage areas
48 & 60 81J69
Crankcase Heater
18, 24, 30 93M04
Prevents liquid migration to compressor in cold weather
36, 42, 48, 60 Factory Installed
Sound Cover
18, 24, 30, 36 14W00
Lowers compressor sound level
42, 48, 60 14W01
Loss of Charge Kit Factory Installed Protects the compressor if refrigerant charge is too low
Additional System Accessories (indoor section)
TXV Kit
18, 24, 30 H4TXV01
TXVs provide superior refrigerant ow control, comfort and e󰀩ciency
compared to pistons
36, 42, 48 H4TXV02
60 H4TXV03
Outdoor Thermostat - Electric Heat All models 10Z23 Prevents electric heat operation above specic ambient conditions
Outdoor Thermostat - Mounting Box All models 31461 Mounting box for outdoor thermostat
Freeze Stat All models 93G35 Protects the compressor at low suction pressure conditions
Overow Switch All models 11U75
Turn the system o󰀨, if condensate water overows due to clogged drain
pipes
Single Point Power Supply All models 21H39 Provide single power source in one junction box
Auxiliary Blower Relay All models 85W66 Maybe required to select multiple indoor blower speeds