Holy Cross School Performance

The Mandate

Design 1

ACTUAL PERFORMANCE

The Mandate

Design 2

ACTUAL PERFORMANCE

 
Project Holy Cross     Line In    
Tag(s) HRU - 1     Voltage 575-3-60    
Agent HTS     FLA 22.5 AMPS  
Job Number       AMPACITY 25 AMPS  
        MAX.NON-TIME DELAY FUSE 50 AMP  
        MAX.TIME DELAY FUSE 35 AMP  
        MAX.CIRCUIT BREAKER 40 AMP  
        MIN.WIRE SIZE #10 AWG  
Model
RG 16000 (9500)
Weight 3573 KG 7897 LB Indoor   Supply/exhaust air Type 1
Heaviest Section (Split units only) 731 KG 1615 LB        
Fans
Supply air fan: ATZAF 20-20
Exhaust air fan ATZAF 20-20
Technical Data
Input Air Sup.Air Exh. air
Air Volume (CFM) 9090 9090
Filter class (MERV) 8 None
External pressure drop (in W.C) 1.50 1.50
     
Output Data    
Design Pressure drop filter (in W.C) 0.50 0.00
Pressure drop in heat exch. (in W.C) 0.53 0.53
Auxillary Pressure Drop drop (in W.C) 0.00 0.00
Static Pressure (in W.C) 2.53 2.03
     
Unit air velocity (fpm) 385 385
Fan Speed (rpm) 1503 1428
Max (rpm) 2300 2300
Fan efficiency (%) 71.06 67.07
Required bhp 5.55 4.84
     
Motor efficiency (%) 91.7 91.7
Motor power rating (hp) 10.00 10.00
Motor RPM 1765 1765
Motor Operating Frequency (Hz) 51 49
     
     
     
     
Expected Performance
Input data Calculated
   
  Winter
Design outdoor temp. (oF) 28.40
Operating time hours/year (h) 2600
Desired supply air temp. winter (oF) 70.0
Exhaust air temperature (°F) 70.0
Output data
Temp. efficiency (across unit) (%) 92.7
Supply air temp. after unit (°F) 66.98
   
Heat power demand gross (BTUH) 408,396
   
Recovered heat across unit (BTUH) 378,758
Req. add. heat energy (BTUH) 29,638

Standard Features

  • Extruded aluminum post and corner construction
  • Galvanized exterior panels
  • Galvanized liner
  • 2" insulation
  • All sections come with hinged access doors, and locking latches on control section
  • Multi-Damper switchover section complete with actuators
  • Galvanized damper blades, damper rods and axles
  • Direct Drive Plenum Fans
Design 2


 
Project Holy Cross     Line In    
Tag(s) HRU - 1     Voltage 480-3-60    
Agent HTS Sudbury     FLA 28 AMPS  
Job Number       AMPACITY 31 AMPS  
        MAX.NON-TIME DELAY FUSE 70 AMPS  
        MAX.TIME DELAY FUSE 45 AMP  
        MAX.CIRCUIT BREAKER 50 AMP  
        MIN.WIRE SIZE #8 AWG  
Model
RG 16000 (9500)
Weight 3573 KG 7897 LB Indoor   Supply/exhaust air Type 1
Heaviest Section (Split units only) 731 KG 1615 LB        
Fans
Supply air fan: ATZAF 20-20
Exhaust air fan ATZAF 20-20
Technical Data
Input Air Sup.Air Exh. air
Air Volume (CFM) 9090 9090
Filter class (MERV) 8 None
External pressure drop (in W.C) 1.50 1.50
     
Output Data    
Design Pressure drop filter (in W.C) 0.50 0.00
Pressure drop in heat exch. (in W.C) 0.53 0.53
Auxillary Pressure Drop drop (in W.C) 0.00 0.00
Static Pressure (in W.C) 2.53 2.03
     
Unit air velocity (fpm) 385 385
Fan Speed (rpm) 1503 1428
Max (rpm) 2300 2300
Fan efficiency (%) 71.06 67.07
Required bhp 3.39 2.79
     
Motor efficiency (%) 91.7 91.7
Motor power rating (hp) 10.00 10.00
Motor RPM 1765 1765
Motor Operating Frequency (Hz) 60 49
     
     
     
     
Expected Performance
Input data Calculated
   
  Winter
Design outdoor temp. (oF) -7.20
Operating time hours/year (h) 2600
Desired supply air temp. winter (oF) 70
Exhaust air temperature (oF) 69.9
Output data
Temp. efficiency (across unit) (%) 88.3
Supply air temp. after unit (%) 60.85
   
Heat power demand gross (BTUH) 757,888
   
Recovered heat across unit (BTUH) 668,060
Req. add. heat energy (BTUH) 89,828

Standard Features

  • Extruded aluminum post and corner construction
  • Galvanized exterior panels
  • Galvanized liner
  • 2" insulation
  • All sections come with hinged access doors, and locking latches on control section
  • Multi-Damper switchover section complete with actuators
  • Galvanized damper blades, damper rods and axles
  • Direct Drive Plenum Fans


LEEDing the way. We’re proud to be a part of many LEED projects. (Leadership in Energy and Environmental Design).