Holy Cross School Performance
The Mandate
Design 1

The Mandate
Design 2

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