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38 VAV-PRC011M-EN
Single-Duct VAV Terminal Units
Hot Water Reheat Coil Notes (SI)
1. Fouling Factor = 0.00025
2. Capacity based on 12°C entering air temperature and 82°C entering water temperature. Refer
to correction factors found in
Tab le 15, p. 31 and Ta bl e 16, p. 31 for different entering
conditions.
3. The following equations may be used in calculating Leaving Air Temperature (LAT) and Water
Temperature Difference (WTD).
LAT = EAT + (kW x 0.83 / L/s)
WTD = EWT - LWT = (kW / (4.19) L/s)
4. For premium coils (.020” wall), side pressure drop increases x 17% and water velocity increases
7% for fixed GPM.
Table 25. Temperature correction factors for water pressure drop (kPa)
Average Water Temperature
Correction Factor
93
0.970
88
0.985
82
1.000
77
1.020
71
1.030
66
1.050
60
1.080
54
1.100
49
1.130
43
1.150
Table 26. Temperature correction factors for coil capacity (kW)
Entering Water Minus Entering Air
Correction Factor
22
0.32
28
0.40
33
0.48
39
0.56
44
0.64
56
0.80
69
1.00
78
1.12
83
1.20
89
1.29
100
1.45
111
1.61
Table 27. Coil only-water weights (SI)
1-Row Coil 2-Row Coil 3-Row Coil 4-Row Coil
Inlet
Size
Internal
Volume
(cm
3
)
Internal
Volume
(liter)
Operating
Weight
(kg)
Internal
Volume
(cm
3
)
Internal
Volume
(liter)
Operating
Weight
(kg)
Internal
Volume
(cm
3
)
Internal
Volume
(liter)
Operating
Weight
(kg)
Internal
Volume
(cm
3
)
Internal
Volume
(liter)
Operating
Weight
(kg)
04 153.6 0.154 2.421 388.0 0.388 3.12 549.3 0.549 10.44 705.9 0.706 10.90
05 153.6 0.154 2.421 388.0 0.388 3.12 549.3 0.549 10.44 705.9 0.706 10.90
06 153.6 0.154 2.421 388.0 0.388 3.12 549.3 0.549 10.44 705.9 0.706 10.90
08 209.4 0.209 2.477 581.3 0.580 4.099 801.1 0.801 10.90 1014.8 1.015 11.80
10 312.4 0.312 3.487 800.1 0.799 5.294 1128.1 1.128 14.53 1446.7 1.447 16.34
12 492.5 0.493 4.853 1103.0 1.101 7.026 1620.6 1.621 18.61 2122.8 2.123 20.43
14 839.1 0.839 6.309 1545.0 1.542 8.965 2425.9 2.426 23.15 3281.9 3.282 24.97
16 960.6 0.961 7.337 1788.0 1.784 10.57 2796.3 2.796 25.42 3776.1 3.776 27.69
24x16 1082.0 1.082 9.273 2030.0 2.027 13.53 3166.6 3.167 34.50 4270.3 4.270 37.23
- Product Catalog 1
- Introduction 2
- Table of Contents 3
- UC210 BACnet Controller 8
- UC400 BACnet Controller 8
- Air-Fi Wireless System 9
- Wireless Zone Sensor Set 9
- Pneumatic Controller 10
- Binary Input Controller 10
- Features and Benefits 11
- Agency Certifications 12
- Model Number Descriptions 14
- Selection Procedure 17
- General Data 19
- 20 VAV-PRC011M-EN 20
- Performance Data 21
- 22 VAV-PRC011M-EN 22
- VAV-PRC011M-EN 23 23
- 24 VAV-PRC011M-EN 24
- VAV-PRC011M-EN 25 25
- 26 VAV-PRC011M-EN 26
- VAV-PRC011M-EN 27 27
- 28 VAV-PRC011M-EN 28
- VAV-PRC011M-EN 29 29
- 30 VAV-PRC011M-EN 30
- VAV-PRC011M-EN 31 31
- 32 VAV-PRC011M-EN 32
- VAV-PRC011M-EN 33 33
- 34 VAV-PRC011M-EN 34
- VAV-PRC011M-EN 35 35
- 36 VAV-PRC011M-EN 36
- VAV-PRC011M-EN 37 37
- 38 VAV-PRC011M-EN 38
- Electrical Data 39
- 40 VAV-PRC011M-EN 40
- VAV-PRC011M-EN 41 41
- 42 VAV-PRC011M-EN 42
- VAV-PRC011M-EN 43 43
- 44 VAV-PRC011M-EN 44
- VAV-PRC011M-EN 45 45
- 46 VAV-PRC011M-EN 46
- VAV-PRC011M-EN 47 47
- 48 VAV-PRC011M-EN 48
- VAV-PRC011M-EN 49 49
- 50 VAV-PRC011M-EN 50
- Dimensional Data 51
- 52 VAV-PRC011M-EN 52
- VAV-PRC011M-EN 53 53
- 54 VAV-PRC011M-EN 54
- VAV-PRC011M-EN 55 55
- LEFT HAND RIGHT HAND 56
- VAV-PRC011M-EN 59 59
- Mechanical Specifications 60
- Outlet Conection 61
- Hot Water Coils 61
- Electric Heat Coils 61
- Electric Heat Options 61
- Direct Digitals Controls 62
- Control Options 63
- Hot Water Valves 63
- 64 VAV-PRC011M-EN 64
- Dual-Duct VAV Terminal Units 66
- Octave Band 234567NC 67
- Outlet Connection 77
- Direct Digital Controls 77
- Reliable Operation 80
- Safe Operation 80
- System-Level Optimization 80
- Simplified Installation 80
- Controller Flexibility 81
- Control Logic 81
- Space Temperature Control 82
- General Operation-Cooling 82
- Ventilation Control 84
- Flow Tracking Control 85
- General Features and Benefits 88
- ONMARK open protocol 94
- DDC Controls 100
- Air-Fi™ Wireless System 101
- Dimensions 102
- Specifications 102
- DDC Zone Sensor 104
- Wall Sensor and Duct CO 105
- DDC Zone Sensor with LCD 106
- Zone Occupancy Sensor 107
- Two-Position Water Valve 109
- Proportional Water Valve 110
- VAV Piping Package 111
- Transformers 113
- Trane Spring Return Actuator 115
- VariTrane™ DDC Retrofit Kit 116
- Retrofit Kit Actuator 116
- Static Pressure Controller 117
- Pneumatic Controls 121
- Pneumatic Damper Actuator 123
- Reversing Relay 123
- Signal Limiter 125
- VAV-PRC011M-EN 133 133
- Controls Specifications 134
- DDC Retrofit Kit (VRTO) 136
- Retrofit Kit Options 136
- Other Options Available 137
- Application Considerations 138
- Terminal Heat 139
- Dual-Duct Systems 139
- VariTrane VAV Terminal Units 140
- VAV Terminal Unit Types 140
- Fan-Pressure Optimization 141
- Ventilation Reset 141
- Control Types 142
- Pneumatic Control Systems 143
- Room Thermostats 144
- Pneumatic Volume Regulators 144
- Flow Measurement and Control 146
- Accuracy 147
- Air Density Effects 147
- Reheat Options 148
- Electric Reheat 149
- Insulation 150
- Acoustics 150
- Insulation types 151
- Placement of units 151
- Unit Attenuation 151
- Certification and Testing 152
- Duct Design 153
- Best Practices 154
- Unit Conversions 155
- VariTrac™ catalog 157
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