Engineering Bulletin IntelliPak RTM (Rooftop Module, 1U48) Subject: Generic Building Automation System (GBAS, UCM Module, 1U51) Issued By: Clarksville Marketing and Sales Support Order No. UN-PRB001-EN Date: AUGUST 2002 Generic Building Automation System (GBAS, UCM Module, 1U51) The purpose of this engineering bulletin is to provide the necessary information required for field connection, assignment and set-up for the four analog inputs, one binary input, and five binary outputs of the optional Generic Building Automation Systems Module, 1 U51. The GBAS is used as an interface between the IntelliPak UCM controls and non-trane building automation systems. This document also includes references to several other inputs and outputs that may be available for control by others.
With the GBAS module installed on the unit, up to four of the Set point Control Parameters or Output Control Parameters can be assigned to each of the 4 analog inputs of the GBAS module. Any combination of the Set point Control Parameters and/or the Output Control Parameters can be assigned to the analog inputs through the onboard Human Interface. An external 0-5 VDC signal can be applied directly to the signal input terminals or the 5 VDC source at the GBAS module can be used in conjunction with a 3-wire potentiometer to provide the signal, see figure 2. Companion Documents: SAHF- PTG - 5 Programming and Troubleshooting Guide (Constant Volume Units) SAHF- PTG - 6 Programming and Troubleshooting Guide (Variable Air Volume Units) SXH_- IOM 9 IntelliPak Installation Operation Manual UCM Control System: Trane IntelliPak Commercial Rooftop Units are controlled by a microelectronic control system that consists of a network of modules and are referred to as Unit Control Modules (UCM). The unit size, type constant volume or variable air volume (CV or VAV), heating functions, peripheral devices, options, relief capabilities, etc. determine the number and type of modules that a particular rooftop unit may employ. The UCM receives analog and binary inputs, then processes this information and supplies outputs in the form of modulating voltages, contact closures, etc. to control damper actuators, fan motors, compressors, valves, electric heating coils and other electrical devices in the unit to maintain set comfort levels. Rooftop Module (RTM) (1U48) (Standard on all units) The RTM is the central processor of the system. It continuously receives information from the other unit modules, sensors, the remote control panel, and customer supplied relays. It then interprets this information and responds to cooling, heating, and ventilation requests by directing the other modules in the system to energize the proper unit components. It also directly initiates supply and relief fan operations, and economizer operation. Generic Building Automation System Module (1U51) option, used with non-trane building control systems. The Generic Building Automation System (GBAS) module allows a non-trane building control system to communicate with the rooftop unit and accepts external setpoints in the form of 0 to 5 VDC controlling cooling, heating, supply air and space pressure setpoints. There is also a binary input available for demand limiting and five binary outputs. Refer to the "Field Installed Control Wiring" section of the current Installation Operation Manual for the input wiring to the GBAS module and the various desired setpoints with the corresponding DC voltage inputs for both VAV and CV applications. The GBAS has no analog outputs. 1
GBAS INPUT INFORMATION Use the following information to determine which set points are eligible to be assigned to the four GBAS analog inputs; also the scaling of the inputs is indicated Notes on GBAS analog inputs: 1. Input voltages less than 0.5 VDC will be considered as 0.5 VDC. 2. Input voltages greater than 4.5 VDC will be considered to be 4.5 VDC. 3. The actual measured voltage will be displayed at the Human Interface. If the GBAS input signal is lost, the setpoint will "clamp" to the low end of the setpoint scale; no diagnostic will result from this condition. Available GBAS analog inputs. You may use up to four analog inputs for either CV or VAV applications. See SAHF-PTG-5 (Constant Volume Units) and SAHF-PTG-6 (Variable Air Volume Units) Programming and Troubleshooting Guides for instructions on mapping GBAS inputs at the IntelliPak Human Interface. Table 1 UNIT TYPE VAV CV SET POINT INPUT VOLTAGE X Occupied Zone Cooling Setpoint 0.5 to 4.5 VDC X X Unoccupied Zone Cooling Setpoint 0.5 to 4.5 VDC X X Occupied Zone Heating Setpoint 0.5 to 4.5 VDC X X Unoccupied Zone Heating Setpoint 0.5 to 4.5 VDC X SA Cooling Setpoint 0.5 to 4.5 VDC X SA Heating Setpoint: 0.5 to 4.5 Hydronic or Modulating Gas Heat VDC X X Space Static Pressure Setpoint 0.5 to 4.5 VDC X SA Static Pressure Setpoint 0.5 to 4.5 VDC X X Minimum Outside Air Flow Setpoint 0.5 to 4.5 * VDC SET POINT TABLE RANGE 50 F to 90 F 3 50 F to 90 F 3 50 F to 90 F 3 50 F to 90 F 3 40 F to 90 F 4 40 F to 180 F 5 0.03 to 0.3 IWC 6 0.0 to 5.0 IWC 7 0 CCFM to UMA** 8 (a-f) * Traq Sensing - Design Special Only, Ventilation Control Module (VCM) Required ** CCFM = CFM X 100, Unit Max Airflow (UMA) Based on Unit Capacity (see Unit Max Airflow Table 8) 2
GBAS INPUT/OUTPUT LABELING The schematic wiring diagram on units produced between October 1993 and July 1994 have GBAS binary outputs incorrectly labeled. The Installation, Operation, Maintenance (IOM) literature for the same time period is also incorrect. Table 2 is correct. Table 2 INPUTS BINARY OUTPUTS # Terminal Strip # Terminal Strip positive (+) negative (-) common normally open normally closed 1 1TB17-1 1TB17-2 1 1TB16-2 1TB16-1 1TB16-3 2 1TB17-3 1TB17-4 2 1TB17-12 1TB17-11 1TB17-13 3 1TB17-7 1TB17-8 3 1TB17-15 1TB17-14 1TB17-16 4 1TB17-9 1TB17-10 4 1TB17-18 1TB17-17 1TB17-19 * 1TB5-1 1TB5-2 5 1TB17-21 1TB17-20 1TB17-22 * This is the GBAS demand limit binary input. Note: that the numerical designations of each output relay (e.g., GBAS Output Number 1) refers to the nomenclature shown on the Human Interface display. Use the following tables to determine the voltage/setpoint relationships for the various setpoint assignments. Review Table 1 for cross reference information. IPV = Input Voltage SP = Set Point Occupied/Unoccupied Heating and Cooling Zone Temperature Setpoints and Input Voltage Table 3 GBAS Input Voltage / Set Point ( for 50-90 F ) IPV SP IPV SP IPV SP IPV SP.50 50 1.6 61 2.7 72 3.8 83.61 51 1.7 62 2.8 73 3.9 84.71 52 1.8 63 2.9 74 4.0 85.81 53 1.9 64 3.0 75 4.1 86.91 54 2.0 65 3.1 76 4.2 87 1.0 55 2.1 66 3.2 77 4.3 88 1.1 56 2.2 67 3.3 78 4.4 89 1.2 57 2.3 68 3.4 79 5.0 90 1.3 58 2.4 69 3.5 80 1.4 59 2.5 70 3.6 81 1.5 60 2.6 71 3.7 82 3
Supply Air Temperature Cooling Setpoint and Input Voltage Table 4 GBAS Input Voltage / Set Point ( for 40-90 F ) IPV SP IPV SP IPV SP IPV SP.5 40 1.54 53 2.58 66 3.62 79.58 41 1.62 54 2.66 67 3.70 80.66 42 1.70 55 2.74 68 3.78 81.74 43 1.78 56 2.82 69 3.86 82.82 44 1.86 57 2.90 70 3.94 83.90 45 1.94 58 2.98 71 4.02 84.98 46 2.02 59 3.06 72 4.10 85 1.06 47 2.10 60 3.14 73 4.18 86 1.14 48 2.18 61 3.22 74 4.26 87 1.22 49 2.26 62 3.30 75 4.34 88 1.30 50 2.34 63 3.38 76 4.42 89 1.38 51 2.42 64 3.46 77 4.5 90 1.46 52 2.50 65 3.54 78 Supply Air Heating Temperature Setpoint and Input Voltage Table 5 GBAS Input Voltage / Set Point ( for 40-180 F ) IPV SP IPV SP IPV SP IPV SP 0.50 40 1.50 75 2.50 110 3.53 146 0.53 41 1.53 76 2.53 111 3.56 147 0.56 42 1.56 77 2.56 112 3.59 148 0.59 43 1.59 78 2.59 113 3.62 149 0.61 44 1.62 79 2.62 114 3.65 150 0.64 45 1.64 80 2.65 115 3.67 151 0.67 46 1.67 81 2.67 116 3.70 152 0.70 47 1.70 82 2.70 117 3.73 153 0.73 48 1.73 83 2.73 118 3.76 154 0.76 49 1.76 84 2.76 119 3.79 155 0.79 50 1.79 85 2.79 120 3.82 156 0.81 51 1.82 86 2.82 121 3.85 157 0.84 52 1.84 87 2.85 122 3.87 158 0.87 53 1.87 88 2.87 123 3.90 159 0.90 54 1.90 89 2.90 124 3.93 160 0.93 55 1.93 90 2.93 125 3.96 161 0.96 56 1.96 91 2.96 126 3.99 162 0.99 57 1.99 92 2.99 127 4.02 163 1.01 58 2.02 93 3.02 128 4.05 164 1.04 59 2.04 94 3.05 129 4.07 165 1.07 60 2.07 95 3.07 130 4.10 166 1.10 61 2.10 96 3.10 131 4.13 167 1.13 62 2.13 97 3.13 132 4.16 168 1.16 63 2.16 98 3.16 133 4.19 169 1.19 64 2.19 99 3.19 134 4.22 170 1.22 65 2.22 100 3.22 135 4.25 171 4
Table 5 Continued 1.24 66 2.24 101 3.25 136 4.28 172 1.27 67 2.27 102 3.27 137 4.30 173 1.30 68 2.30 103 3.30 138 4.33 174 1.33 69 2.33 104 3.33 139 4.36 175 1.36 70 2.36 105 3.36 140 4.39 176 1.39 71 2.39 106 3.39 141 4.42 177 1.42 72 2.42 107 3.42 142 4.45 178 1.44 73 2.44 108 3.45 143 4.48 179 1.47 74 2.47 109 3.47 144 4.50 180 Space Static Pressure Setpoint and Input Voltage Table 6 GBAS Input Voltage / Set Point ( for 0.03 0.30 IWC ) IPV SP IPV SP IPV SP IPV SP 0.50 0.03 1.54 0.10 2.57 0.17 3.61 0.24 0.65 0.04 1.68 0.11 2.72 0.18 3.76 0.25 0.80 0.05 1.83 0.12 2.87 0.19 3.90 0.26 0.94 0.06 1.98 0.13 3.02 0.20 4.05 0.27 1.09 0.07 2.13 0.14 3.16 0.21 4.20 0.28 1.24 0.08 2.28 0.15 3.31 0.22 4.35 0.29 1.39 0.09 2.42 0.16 3.46 0.23 4.50 0.30 Supply Pressure Setpoint and Input Voltage Setpoint Range is 1.0-4.3 IWC at Human Interface Table 7 GBAS Input Voltage / Set Point ( for 0.0 5.0 IWC ) IPV SP IPV SP IPV SP IPV SP 0.50 0.0 1.54 1.3 2.58 2.6 3.62 3.9 0.58 0.1 1.62 1.4 2.66 2.7 3.70 4.0 0.66 0.2 1.70 1.5 2.74 2.8 3.78 4.1 0.74 0.3 1.78 1.6 2.82 2.9 3.86 4.2 0.82 0.4 1.86 1.7 2.90 3.0 3.94 4.3 0.90 0.5 1.94 1.8 2.98 3.1 4.02 4.4 0.98 0.6 2.02 1.9 3.06 3.2 4.10 4.5 1.06 0.7 2.10 2.0 3.14 3.3 4.18 4.6 1.14 0.8 2.18 2.1 3.22 3.4 4.26 4.7 1.22 0.9 2.26 2.2 3.30 3.5 4.34 4.8 1.30 1.0 2.34 2.3 3.38 3.6 4.42 4.9 1.38 1.1 2.42 2.4 3.46 3.7 4.50 5.0 1.46 1.2 2.50 2.5 3.54 3.8 5
Maximum Outside Air Flow With Ventilation Control Module (Traq Sensing) and GBAS Module Installed Table 8 Unit Capcity (Tons) Maximum (CCFM) UNIT MAX AIRFLOW Table Unit Capcity (Tons) Maximum (CCFM) 20-25 140.0 8a 50-55 280.0 8d 30 170.0 8b 60-75 330.0 8e 40 220.0 8c 90-130 460.0 8f Table If CO2 Sensing is employed with the VCM Module (Traq Sensing)The CO2 Input to the RTM takes precedence over the GBAS Input. Use the following tables to determine the voltage/setpoint relationships for the various Minimum Outside Air Flow Setpoint assignments. Review Table 8 for cross reference information. Outside Air Flow Setpoint and Input Voltage Tables Table 8a GBAS Input Voltage / Set Point ( for 0.0-140.0 CCFM ) IPV SP IPV SP IPV SP IPV SP 0.50 0 1.53 36 2.56 72 3.59 108 0.53 1 1.56 37 2.59 73 3.62 109 0.56 2 1.59 38 2.62 74 3.65 110 0.59 3 1.62 39 2.65 75 3.67 111 0.61 4 1.64 40 2.67 76 3.70 112 0.64 5 1.67 41 2.70 77 3.73 113 0.67 6 1.70 42 2.73 78 3.76 114 0.70 7 1.73 43 2.76 79 3.79 115 0.73 8 1.76 44 2.79 80 3.82 116 0.76 9 1.79 45 2.82 81 3.85 117 0.79 10 1.82 46 2.85 82 3.87 118 0.81 11 1.84 47 2.87 83 3.90 119 0.84 12 1.87 48 2.90 84 3.93 120 0.87 13 1.90 49 2.93 85 3.96 121 0.90 14 1.93 50 2.96 86 3.99 122 0.93 15 1.96 51 2.99 87 4.02 123 0.96 16 1.99 52 3.02 88 4.05 124 0.99 17 2.02 53 3.05 89 4.07 125 1.01 18 2.04 54 3.07 90 4.10 126 1.04 19 2.07 55 3.10 91 4.13 127 1.07 20 2.10 56 3.13 92 4.16 128 1.10 21 2.13 57 3.16 93 4.19 129 1.13 22 2.16 58 3.19 94 4.22 130 1.16 23 2.19 59 3.22 95 4.25 131 1.19 24 2.22 60 3.25 96 4.28 132 1.22 25 2.24 61 3.27 97 4.30 133 1.24 26 2.27 62 3.30 98 4.33 134 1.27 27 2.30 63 3.33 99 4.36 135 6
Table 8a Continued 1.30 28 2.33 64 3.36 100 4.39 136 1.33 29 2.36 65 3.39 101 4.42 137 1.36 30 2.39 66 3.42 102 4.45 138 1.39 31 2.42 67 3.45 103 4.48 139 1.42 32 2.44 68 3.47 104 4.50 140 1.44 33 2.47 69 3.50 105 1.47 34 2.50 70 3.53 106 1.50 35 2.53 71 3.56 107 Table 8b GBAS Input Voltage / Set Point ( for 0.0-170.0 CCFM ) IPV SP IPV SP IPV SP IPV SP 0.50 0 1.51 43 2.52 86 3.54 129 0.52 1 1.54 44 2.55 87 3.56 130 0.55 2 1.56 45 2.57 88 3.58 131 0.57 3 1.58 46 2.59 89 3.61 132 0.59 4 1.61 47 2.62 90 3.63 133 0.62 5 1.63 48 2.64 91 3.65 134 0.64 6 1.65 49 2.66 92 3.68 135 0.66 7 1.68 50 2.69 93 3.70 136 0.69 8 1.70 51 2.71 94 3.72 137 0.71 9 1.72 52 2.74 95 3.75 138 0.74 10 1.75 53 2.76 96 3.77 139 0.76 11 1.77 54 2.78 97 3.79 140 0.78 12 1.79 55 2.81 98 3.82 141 0.81 13 1.82 56 2.83 99 3.84 142 0.83 14 1.84 57 2.85 100 3.86 143 0.85 15 1.86 58 2.88 101 3.89 144 0.88 16 1.89 59 2.90 102 3.91 145 0.90 17 1.91 60 2.92 103 3.94 146 0.92 18 1.94 61 2.95 104 3.96 147 0.95 19 1.96 62 2.97 105 3.98 148 0.97 20 1.98 63 2.99 106 4.01 149 0.99 21 2.01 64 3.02 107 4.03 150 1.02 22 2.03 65 3.04 108 4.05 151 1.04 23 2.05 66 3.06 109 4.08 152 1.06 24 2.08 67 3.09 110 4.10 153 1.09 25 2.10 68 3.11 111 4.12 154 1.11 26 2.12 69 3.14 112 4.15 155 1.14 27 2.15 70 3.16 113 4.17 156 1.16 28 2.17 71 3.18 114 4.19 157 1.18 29 2.19 72 3.21 115 4.22 158 1.21 30 2.22 73 3.23 116 4.24 159 1.23 31 2.24 74 3.25 117 4.26 160 1.25 32 2.26 75 3.28 118 4.29 161 1.28 33 2.29 76 3.30 119 4.31 162 1.30 34 2.31 77 3.32 120 4.34 163 1.32 35 2.34 78 3.35 121 4.36 164 1.35 36 2.36 79 3.37 122 4.38 165 1.37 37 2.38 80 3.39 123 4.41 166 1.39 38 2.41 81 3.42 124 4.43 167 7
Table 8b Continued 1.42 39 2.43 82 3.44 125 4.45 168 1.44 40 2.45 83 3.46 126 4.48 169 1.46 41 2.48 84 3.49 127 4.50 170 1.49 42 2.50 85 3.51 128 Table 8c GBAS Input Voltage / Set Point ( for 0.0-220.0 CCFM ) IPV SP IPV SP IPV SP IPV SP 0.50 0 1.52 56 2.54 112 3.56 168 0.52 1 1.54 57 2.56 113 3.58 169 0.54 2 1.56 58 2.57 114 3.59 170 0.55 3 1.57 59 2.59 115 3.61 171 0.57 4 1.59 60 2.61 116 3.63 172 0.59 5 1.61 61 2.63 117 3.65 173 0.61 6 1.63 62 2.65 118 3.67 174 0.63 7 1.65 63 2.67 119 3.69 175 0.65 8 1.66 64 2.68 120 3.70 176 0.66 9 1.68 65 2.70 121 3.72 177 0.68 10 1.70 66 2.72 122 3.74 178 0.70 11 1.72 67 2.74 123 3.76 179 0.72 12 1.74 68 2.76 124 3.78 180 0.74 13 1.76 69 2.78 125 3.79 181 0.75 14 1.77 70 2.79 126 3.81 182 0.77 15 1.79 71 2.81 127 3.83 183 0.79 16 1.81 72 2.83 128 3.85 184 0.81 17 1.83 73 2.85 129 3.87 185 0.83 18 1.85 74 2.87 130 3.89 186 0.85 19 1.87 75 2.88 131 3.90 187 0.86 20 1.88 76 2.90 132 3.92 188 0.88 21 1.90 77 2.92 133 3.94 189 0.90 22 1.92 78 2.94 134 3.96 190 0.92 23 1.94 79 2.96 135 3.98 191 0.94 24 1.96 80 2.98 136 3.99 192 0.96 25 1.97 81 2.99 137 4.01 193 0.97 26 1.99 82 3.01 138 4.03 194 0.99 27 2.01 83 3.03 139 4.05 195 1.01 28 2.03 84 3.05 140 4.07 196 1.03 29 2.05 85 3.07 141 4.09 197 1.05 30 2.07 86 3.08 142 4.10 198 1.06 31 2.08 87 3.10 143 4.12 199 1.08 32 2.10 88 3.12 144 4.14 200 1.10 33 2.12 89 3.14 145 4.16 201 1.12 34 2.14 90 3.16 146 4.18 202 1.14 35 2.16 91 3.18 147 4.19 203 1.16 36 2.17 92 3.19 148 4.21 204 1.17 37 2.19 93 3.21 149 4.23 205 1.19 38 2.21 94 3.23 150 4.25 206 1.21 39 2.23 95 3.25 151 4.27 207 1.23 40 2.25 96 3.27 152 4.29 208 1.25 41 2.27 97 3.28 153 4.30 209 1.26 42 2.28 98 3.30 154 4.32 210 8
Table 8c Continued 1.28 43 2.30 99 3.32 155 4.34 211 1.30 44 2.32 100 3.34 156 4.36 212 1.32 45 2.34 101 3.36 157 4.38 213 1.34 46 2.36 102 3.38 158 4.39 214 1.36 47 2.37 103 3.39 159 4.41 215 1.37 48 2.39 104 3.41 160 4.43 216 1.39 49 2.41 105 3.43 161 4.45 217 1.41 50 2.43 106 3.45 162 4.47 218 1.43 51 2.45 107 3.47 163 4.49 219 1.45 52 2.47 108 3.48 164 4.50 220 1.46 53 2.48 109 3.50 165 1.48 54 2.50 110 3.52 166 1.50 55 2.52 111 3.54 167 Table 8d GBAS Input Voltage / Set Point ( for 0.0-280.0 CCFM ) IPV SP IPV SP IPV SP IPV SP 0.500 0 1.515 71 2.529 142 3.544 213 0.514 1 1.529 72 2.543 143 3.558 214 0.529 2 1.543 73 2.558 144 3.572 215 0.543 3 1.557 74 2.572 145 3.587 216 0.557 4 1.572 75 2.586 146 3.601 217 0.571 5 1.586 76 2.601 147 3.615 218 0.586 6 1.600 77 2.615 148 3.630 219 0.600 7 1.615 78 2.629 149 3.644 220 0.614 8 1.629 79 2.644 150 3.658 221 0.629 9 1.643 80 2.658 151 3.672 222 0.643 10 1.657 81 2.672 152 3.687 223 0.657 11 1.672 82 2.686 153 3.701 224 0.671 12 1.686 83 2.701 154 3.715 225 0.686 13 1.700 84 2.715 155 3.730 226 0.700 14 1.715 85 2.729 156 3.744 227 0.714 15 1.729 86 2.744 157 3.758 228 0.729 16 1.743 87 2.758 158 3.772 229 0.743 17 1.758 88 2.772 159 3.787 230 0.757 18 1.772 89 2.786 160 3.801 231 0.772 19 1.786 90 2.801 161 3.815 232 0.786 20 1.800 91 2.815 162 3.830 233 0.800 21 1.815 92 2.829 163 3.844 234 0.814 22 1.829 93 2.844 164 3.858 235 0.829 23 1.843 94 2.858 165 3.872 236 0.843 24 1.858 95 2.872 166 3.887 237 0.857 25 1.872 96 2.886 167 3.901 238 0.872 26 1.886 97 2.901 168 3.915 239 0.886 27 1.900 98 2.915 169 3.930 240 0.900 28 1.915 99 2.929 170 3.944 241 0.914 29 1.929 100 2.944 171 3.958 242 0.929 30 1.943 101 2.958 172 3.972 243 0.943 31 1.958 102 2.972 173 3.987 244 0.957 32 1.972 103 2.986 174 4.001 245 9
Table 8d Continued 0.972 33 1.986 104 3.001 175 4.015 246 0.986 34 2.000 105 3.015 176 4.030 247 1.000 35 2.015 106 3.029 177 4.044 248 1.014 36 2.029 107 3.044 178 4.058 249 1.029 37 2.043 108 3.058 179 4.073 250 1.043 38 2.058 109 3.072 180 4.087 251 1.057 39 2.072 110 3.086 181 4.101 252 1.072 40 2.086 111 3.101 182 4.115 253 1.086 41 2.100 112 3.115 183 4.130 254 1.100 42 2.115 113 3.129 184 4.144 255 1.114 43 2.129 114 3.144 185 4.158 256 1.129 44 2.143 115 3.158 186 4.173 257 1.143 45 2.158 116 3.172 187 4.187 258 1.157 46 2.172 117 3.187 188 4.201 259 1.172 47 2.186 118 3.201 189 4.215 260 1.186 48 2.201 119 3.215 190 4.230 261 1.200 49 2.215 120 3.229 191 4.244 262 1.215 50 2.229 121 3.244 192 4.258 263 1.229 51 2.243 122 3.258 193 4.273 264 1.243 52 2.258 123 3.272 194 4.287 265 1.257 53 2.272 124 3.287 195 4.301 266 1.272 54 2.286 125 3.301 196 4.315 267 1.286 55 2.301 126 3.315 197 4.330 268 1.300 56 2.315 127 3.329 198 4.344 269 1.315 57 2.329 128 3.344 199 4.358 270 1.329 58 2.343 129 3.358 200 4.373 271 1.343 59 2.358 130 3.372 201 4.387 272 1.357 60 2.372 131 3.387 202 4.401 273 1.372 61 2.386 132 3.401 203 4.415 274 1.386 62 2.401 133 3.415 204 4.430 275 1.400 63 2.415 134 3.429 205 4.444 276 1.415 64 2.429 135 3.444 206 4.458 277 1.429 65 2.443 136 3.458 207 4.473 278 1.443 66 2.458 137 3.472 208 4.487 279 1.457 67 2.472 138 3.487 209 4.501 280 1.472 68 2.486 139 3.501 210 1.486 69 2.501 140 3.515 211 1.500 70 2.515 141 3.529 212 Table 8e GBAS Input Voltage / Set Point ( for 0.0-330.0 CCFM ) IPV SP IPV SP IPV SP IPV SP 0.500 0 1.506 83 2.512 166 3.518 249 0.512 1 1.518 84 2.524 167 3.530 250 0.524 2 1.530 85 2.536 168 3.542 251 0.536 3 1.542 86 2.548 169 3.554 252 0.548 4 1.554 87 2.560 170 3.566 253 0.561 5 1.567 88 2.573 171 3.578 254 0.573 6 1.579 89 2.585 172 3.591 255 0.585 7 1.591 90 2.597 173 3.603 256 0.597 8 1.603 91 2.609 174 3.615 257 10
Table 8e Continued 0.609 9 1.615 92 2.621 175 3.627 258 0.621 10 1.627 93 2.633 176 3.639 259 0.633 11 1.639 94 2.645 177 3.651 260 0.645 12 1.651 95 2.657 178 3.663 261 0.658 13 1.664 96 2.669 179 3.675 262 0.670 14 1.676 97 2.682 180 3.688 263 0.682 15 1.688 98 2.694 181 3.700 264 0.694 16 1.700 99 2.706 182 3.712 265 0.706 17 1.712 100 2.718 183 3.724 266 0.718 18 1.724 101 2.730 184 3.736 267 0.730 19 1.736 102 2.742 185 3.748 268 0.742 20 1.748 103 2.754 186 3.760 269 0.755 21 1.760 104 2.766 187 3.772 270 0.767 22 1.773 105 2.779 188 3.785 271 0.779 23 1.785 106 2.791 189 3.797 272 0.791 24 1.797 107 2.803 190 3.809 273 0.803 25 1.809 108 2.815 191 3.821 274 0.815 26 1.821 109 2.827 192 3.833 275 0.827 27 1.833 110 2.839 193 3.845 276 0.839 28 1.845 111 2.851 194 3.857 277 0.851 29 1.857 112 2.863 195 3.869 278 0.864 30 1.870 113 2.876 196 3.881 279 0.876 31 1.882 114 2.888 197 3.894 280 0.888 32 1.894 115 2.900 198 3.906 281 0.900 33 1.906 116 2.912 199 3.918 282 0.912 34 1.918 117 2.924 200 3.930 283 0.924 35 1.930 118 2.936 201 3.942 284 0.936 36 1.942 119 2.948 202 3.954 285 0.948 37 1.954 120 2.960 203 3.966 286 0.961 38 1.967 121 2.972 204 3.978 287 0.973 39 1.979 122 2.985 205 3.991 288 0.985 40 1.991 123 2.997 206 4.003 289 0.997 41 2.003 124 3.009 207 4.015 290 1.009 42 2.015 125 3.021 208 4.027 291 1.021 43 2.027 126 3.033 209 4.039 292 1.033 44 2.039 127 3.045 210 4.051 293 1.045 45 2.051 128 3.057 211 4.063 294 1.058 46 2.063 129 3.069 212 4.075 295 1.070 47 2.076 130 3.082 213 4.088 296 1.082 48 2.088 131 3.094 214 4.100 297 1.094 49 2.100 132 3.106 215 4.112 298 1.106 50 2.112 133 3.118 216 4.124 299 1.118 51 2.124 134 3.130 217 4.136 300 1.130 52 2.136 135 3.142 218 4.148 301 1.142 53 2.148 136 3.154 219 4.160 302 1.154 54 2.160 137 3.166 220 4.172 303 1.167 55 2.173 138 3.179 221 4.184 304 1.179 56 2.185 139 3.191 222 4.197 305 1.191 57 2.197 140 3.203 223 4.209 306 1.203 58 2.209 141 3.215 224 4.221 307 1.215 59 2.221 142 3.227 225 4.233 308 11
Table 8e Continued 1.227 60 2.233 143 3.239 226 4.245 309 1.239 61 2.245 144 3.251 227 4.257 310 1.251 62 2.257 145 3.263 228 4.269 311 1.264 63 2.270 146 3.275 229 4.281 312 1.276 64 2.282 147 3.288 230 4.294 313 1.288 65 2.294 148 3.300 231 4.306 314 1.300 66 2.306 149 3.312 232 4.318 315 1.312 67 2.318 150 3.324 233 4.330 316 1.324 68 2.330 151 3.336 234 4.342 317 1.336 69 2.342 152 3.348 235 4.354 318 1.348 70 2.354 153 3.360 236 4.366 319 1.361 71 2.366 154 3.372 237 4.378 320 1.373 72 2.379 155 3.385 238 4.391 321 1.385 73 2.391 156 3.397 239 4.403 322 1.397 74 2.403 157 3.409 240 4.415 323 1.409 75 2.415 158 3.421 241 4.427 324 1.421 76 2.427 159 3.433 242 4.439 325 1.433 77 2.439 160 3.445 243 4.451 326 1.445 78 2.451 161 3.457 244 4.463 327 1.457 79 2.463 162 3.469 245 4.475 328 1.470 80 2.476 163 3.482 246 4.487 329 1.482 81 2.488 164 3.494 247 4.500 330 1.494 82 2.500 165 3.506 248 Table 8f GBAS Input Voltage / Set Point ( for 0.0-460.0 CCFM ) IPV SP IPV SP IPV SP IPV SP 0.500 0 1.509 116 2.517 232 3.526 348 0.509 1 1.517 117 2.526 233 3.535 349 0.517 2 1.526 118 2.535 234 3.544 350 0.526 3 1.535 119 2.544 235 3.552 351 0.535 4 1.544 120 2.552 236 3.561 352 0.543 5 1.552 121 2.561 237 3.570 353 0.552 6 1.561 122 2.570 238 3.578 354 0.561 7 1.570 123 2.578 239 3.587 355 0.570 8 1.578 124 2.587 240 3.596 356 0.578 9 1.587 125 2.596 241 3.604 357 0.587 10 1.596 126 2.604 242 3.613 358 0.596 11 1.604 127 2.613 243 3.622 359 0.604 12 1.613 128 2.622 244 3.631 360 0.613 13 1.622 129 2.631 245 3.639 361 0.622 14 1.630 130 2.639 246 3.648 362 0.630 15 1.639 131 2.648 247 3.657 363 0.639 16 1.648 132 2.657 248 3.665 364 0.648 17 1.657 133 2.665 249 3.674 365 0.657 18 1.665 134 2.674 250 3.683 366 0.665 19 1.674 135 2.683 251 3.691 367 0.674 20 1.683 136 2.691 252 3.700 368 0.683 21 1.691 137 2.700 253 3.709 369 0.691 22 1.700 138 2.709 254 3.718 370 0.700 23 1.709 139 2.717 255 3.726 371 12
Table 8f Continued 0.709 24 1.717 140 2.726 256 3.735 372 0.717 25 1.726 141 2.735 257 3.744 373 0.726 26 1.735 142 2.744 258 3.752 374 0.735 27 1.744 143 2.752 259 3.761 375 0.743 28 1.752 144 2.761 260 3.770 376 0.752 29 1.761 145 2.770 261 3.778 377 0.761 30 1.770 146 2.778 262 3.787 378 0.770 31 1.778 147 2.787 263 3.796 379 0.778 32 1.787 148 2.796 264 3.804 380 0.787 33 1.796 149 2.804 265 3.813 381 0.796 34 1.804 150 2.813 266 3.822 382 0.804 35 1.813 151 2.822 267 3.831 383 0.813 36 1.822 152 2.831 268 3.839 384 0.822 37 1.830 153 2.839 269 3.848 385 0.830 38 1.839 154 2.848 270 3.857 386 0.839 39 1.848 155 2.857 271 3.865 387 0.848 40 1.857 156 2.865 272 3.874 388 0.857 41 1.865 157 2.874 273 3.883 389 0.865 42 1.874 158 2.883 274 3.891 390 0.874 43 1.883 159 2.891 275 3.900 391 0.883 44 1.891 160 2.900 276 3.909 392 0.891 45 1.900 161 2.909 277 3.918 393 0.900 46 1.909 162 2.917 278 3.926 394 0.909 47 1.917 163 2.926 279 3.935 395 0.917 48 1.926 164 2.935 280 3.944 396 0.926 49 1.935 165 2.944 281 3.952 397 0.935 50 1.944 166 2.952 282 3.961 398 0.943 51 1.952 167 2.961 283 3.970 399 0.952 52 1.961 168 2.970 284 3.978 400 0.961 53 1.970 169 2.978 285 3.987 401 0.970 54 1.978 170 2.987 286 3.996 402 0.978 55 1.987 171 2.996 287 4.004 403 0.987 56 1.996 172 3.004 288 4.013 404 0.996 57 2.004 173 3.013 289 4.022 405 1.004 58 2.013 174 3.022 290 4.031 406 1.013 59 2.022 175 3.031 291 4.039 407 1.022 60 2.030 176 3.039 292 4.048 408 1.030 61 2.039 177 3.048 293 4.057 409 1.039 62 2.048 178 3.057 294 4.065 410 1.048 63 2.057 179 3.065 295 4.074 411 1.057 64 2.065 180 3.074 296 4.083 412 1.065 65 2.074 181 3.083 297 4.091 413 1.074 66 2.083 182 3.091 298 4.100 414 1.083 67 2.091 183 3.100 299 4.109 415 1.091 68 2.100 184 3.109 300 4.118 416 1.100 69 2.109 185 3.117 301 4.126 417 1.109 70 2.117 186 3.126 302 4.135 418 1.117 71 2.126 187 3.135 303 4.144 419 1.126 72 2.135 188 3.144 304 4.152 420 1.135 73 2.144 189 3.152 305 4.161 421 1.144 74 2.152 190 3.161 306 4.170 422 13
14 Table 8f Continued 1.152 75 2.161 191 3.170 307 4.178 423 1.161 76 2.170 192 3.178 308 4.187 424 1.170 77 2.178 193 3.187 309 4.196 425 1.178 78 2.187 194 3.196 310 4.204 426 1.187 79 2.196 195 3.204 311 4.213 427 1.196 80 2.204 196 3.213 312 4.222 428 1.204 81 2.213 197 3.222 313 4.231 429 1.213 82 2.222 198 3.231 314 4.239 430 1.222 83 2.231 199 3.239 315 4.248 431 1.230 84 2.239 200 3.248 316 4.257 432 1.239 85 2.248 201 3.257 317 4.265 433 1.248 86 2.257 202 3.265 318 4.274 434 1.257 87 2.265 203 3.274 319 4.283 435 1.265 88 2.274 204 3.283 320 4.291 436 1.274 89 2.283 205 3.291 321 4.300 437 1.283 90 2.291 206 3.300 322 4.309 438 1.291 91 2.300 207 3.309 323 4.318 439 1.300 92 2.309 208 3.318 324 4.326 440 1.309 93 2.317 209 3.326 325 4.335 441 1.317 94 2.326 210 3.335 326 4.344 442 1.326 95 2.335 211 3.344 327 4.352 443 1.335 96 2.344 212 3.352 328 4.361 444 1.344 97 2.352 213 3.361 329 4.370 445 1.352 98 2.361 214 3.370 330 4.378 446 1.361 99 2.370 215 3.378 331 4.387 447 1.370 100 2.378 216 3.387 332 4.396 448 1.378 101 2.387 217 3.396 333 4.405 449 1.387 102 2.396 218 3.404 334 4.413 450 1.396 103 2.404 219 3.413 335 4.422 451 1.404 104 2.413 220 3.422 336 4.431 452 1.413 105 2.422 221 3.431 337 4.439 453 1.422 106 2.431 222 3.439 338 4.448 454 1.430 107 2.439 223 3.448 339 4.457 455 1.439 108 2.448 224 3.457 340 4.465 456 1.448 109 2.457 225 3.465 341 4.474 457 1.457 110 2.465 226 3.474 342 4.483 458 1.465 111 2.474 227 3.483 343 4.491 459 1.474 112 2.483 228 3.491 344 4.500 460 1.483 113 2.491 229 3.500 345 1.491 114 2.500 230 3.509 346 1.500 115 2.509 231 3.518 347
Formulas for calculating input voltage or set point: IPV = Input Voltage SP = Set Point IPV IPV ( )( 0.1) ( 0.5) = SP 50 + ( )( 0.08) ( 0.5) = SP 40 + 50-90 F, 40-90 F, IPV 05. SP = + ( 50) 01. 0.5 SP = IPV + 0.08 ( 40) IPV IPV 40-180 F ( )( 0.0286) ( 0.5) = SP 40 + = ( SP 003. )( 148. ) + ( 05. ), 0.03-0.3 IWC, 0.5 SP = IPV 0.0286 + ( 40) IPV 05. SP = + ( 003. ) 14. 8 IPV ( )( 0.8) + ( 0.5), = SP 0.0-5.0 IWC SP = IPV 0.5 0.8 0.0 CFM [Unit Max Airflow] (see Table 3 Above) IPV = 4.0 [ UnitMaxAirflow] ( SP) + ( 0.5), ( IPV 0.5)[ UnitMaxAirflow] SP = 4.0 15
USE OF POTENTIOMETERS WITH GBAS MODULE 1U51 As an alternative to the use of an external 0-5 VDC signal, a potentiometer may be used to provide a setpoint. There is one regulated 5 VDC output on the GBAS module which may be used with a potentiometer as a voltage divider. An example of this is shown on drawing 2. Recommended potentiometer value is from 1KΩ to 100KΩ. RTM ( Roof Top Module ), 1U48, SETPOINT ANALOG INPUTS See table 11 for terminal strip connection points. Table 9 RTM cooling or heating setpoint input used as the source for a ZONE temp setpoint ( F) RTM cooling setpoint input used as the source for SUPPLY AIR temp setpoint - cooling ( F) Resistance (Ω) 40 40 1084 45 45 992 50 50 899 55 55 796 60 60 695 65 65 597 70 70 500 75 80 403 80 80 305 N/A 85 208 N/A 90 111 RTM, 1U48, MODE INPUTS Table 10 Resistance applied to RTM MODE input terminals (Ω) Constant Volume Units Fan mode System mode VAV Units System mode 2320 AUTO OFF OFF 4870 AUTO COOL --- 7680 AUTO AUTO AUTO 10770 ON OFF --- 13320 ON COOL --- 16130 ON AUTO --- 19480 AUTO HEAT --- 27930 ON HEAT --- Mode Boundaries: The lower boundary is 1 kω.; the upper boundary is 40kΩ. Other boundaries are equal to the midpoint between the nominal mode resistance s. See table 11 for terminal strip connection points. 16
Table 11 RTM TERMINAL STRIP INPUTS FOR SET POINTS AND MODES COMMON ZONE COOLING ZONE HEATING SUPPLY AIR MODE VAV 1TB4-2 1TB4-3 1TB4-5 1TB4-3 1TB4-4 RTM, 1U48, TEMPERATURE SENSORS All Temperature Sensors used with IntelliPak and Voyager rooftops are thermistors with the SAME temperature-resistance characteristic curve: Keystone Carbon D97 Material. Tolerances are ±1 C. Table 12 is temperature vs. resistance, and table 15 is sensor terminal strip hook up locations. Table 12 TEMPERATURE DEGREES F TEMPERATURE ( F) RESISTANCE (kω) TEMPERATURE ( F) RESISTANCE (kω) -40 346.1 71 11.60-30 241.7 72 11.31-20 170.1 73 11.03-10 121.4 74 10.76-5 103.0 75 10.50 0 87.56 76 10.25 5 74.65 77 10.00 10 63.80 78 9.76 15 54.66 79 6.53 20 46.94 80 9.30 25 40.40 85 8.25 30 34.85 90 7.33 35 30.18 100 5.82 40 26.22 105 5.21 45 22.85 110 4.66 50 19.96 120 3.76 55 17.47 130 3.05 60 15.33 140 2.50 65 13.49 150 2.05 66 13.15 160 1.69 67 12.82 170 1.40 68 12.50 180 1.17 69 12.19 190 0.985 70 11.89 200 0.830 17
The following binary and analog connections may be used in conjunction with the GBAS module to extend the available inputs for non Trane building automation controls. These connections are available with or without the GBAS module. EMERGENCY STOP (w/ HIGH DUCT TEMP. TSTAT), AND EXTERNAL AUTO/STOP Emergency Stop and External Auto/Stop stop the unit immediately, Emergency Stop generates a manual reset diagnostic that must be reset at the unit human interface. External Auto-Stop will return the unit to the current operating mode when the input is closed, so this input is auto reset See Table 14 for terminal strip hook-up locations. UNOCCUPIED MODE The unoccupied mode is entered when the unoccupied binary input is closed. The supply fan stops and the economizer closes. On VAV units the inlet guide vanes go full open and the unoccupied relay contacts change. The fan starts on a call for heating or cooling when the unit reaches an unoccupied heating or cooling setpoint. When that setpoint is satisfied the fan stops. If MWU (Morning Warm Up) is enabled and the sensor selected to be used for MWU is below the MWU setpoint; when the unoccupied binary contacts open, the unit enters the MORNING WARM UP MODE. The fan and the heat come on with the economizer closed until the morning warm-up set point is reached. When this set point is reached the fan stops, the economizer strokes to the minimum position, and on VAV units the inlet guide vanes close and the unoccupied relay changes. When the VAV box stroke time is met the unit enters the occupied mode, the fan starts. If MWU is not required disable the function in the Setup Menu. See Table 14 for terminal strip hook-up locations. CHANGEOVER This mode only functions on units configured as VAV with HYDRONIC or Modulating Gas heat. When the changeover binary input is closed the unit will control to a discharge air heating setpoint. This setpoint is entered from the unit Human Interface or the GBAS module and can be a higher temperature than the supply air cooling setpoint. RTM, 1U48, BINARY INPUT CONNECTIONS Table 13 RTM BINARY INPUTS Description Terminal Strip Locations Emergency Stop 1TB4-15 1TB4-16 High Duct Temp. Tstat** 1TB7-7 * 1TB7-8 * External Auto/Stop 1TB4-17 * 1TB4-18 * Unoccupied ( night set back ) 1TB4-18 1TB4-19 Changeover 1TB5-21 1TB5-22 * Remove factory jumper. ** Wired in series with Emergency Stop RTM, 1U48, REMOTE ECONOMIZER MINIMUM POSITION The remote minimum position potentiometer BAYSTAT023A provides a variable resistance (0-270Ω) for adjustment of Economizer Minimum Position from 0 to 100% when connected to the Economizer Remote Minimum Position Input of the RTM. RTM must be selected as the Source for Economizer Minimum Position. On VAV units the Outside Air Compensation input must be disabled for the Remote Economizer Minimum Position input to function. Terminal strip inputs are shown in Table 15. 18
Economizer Remote Minimum Position Input resistance chart: Table 14 Input Resistance Economizer Minimum Position 0-30 Ω 0 % 30-240 Ω 0-100 % (Linear) 240-350 Ω 100 % > 350 Ω N/A * * Resistance s greater than 350 Ω are assumed to be an open circuit. The system will in that case use the Default Minimum Position value. RTM, 1U48 TERMINAL STRIP CONNECTIONS FOR SENSORS Table 15 SENSOR DESCRIPTION TERMINALS RTM ZONE TEMP. 1TB4-1 1TB4-2 RTM AUX. TEMP. 1TB4-11 1TB4-13 RTM ECON MIN POSITION POT 1TB5-8 1TB5-9 RTM, 1U48, ANALOG OUTPUTS The RTM has two 0-10 VDC outputs, one for the inlet guide vanes, and one for the economizer if the unit is configured with these options. These outputs will provide a signal for one or two damper actuators. There are no terminal strip locations associated with these wires. They go directly from pins on the RTM circuit board to the actuator motor. Terminal locations are in Table 16. Table 16 Inlet Guide Vane Economizer Actuator Economizer Min. Pos. RTM Terminal Location RTM Terminal Location Terminal Strip Location (+) J4-1 (-) J4-2 (+) J6-1 (-) J6-2 1TB5-8 1TB5-9 RTM, 1U48, BINARY OUTPUTS The RTM has an output for the supply fan and exhaust fan if so configured. Both of these outputs have pressure switch proving inputs. There is a 5 minute delay from the time the RTM issues a command to start the supply fan until the fan proving input must close. A fan failure diagnostic will occur after 5 minutes. This is a manual rest diagnostic, all heating, cooling and economizer functions will be locked out. If the proving input opens during fan operation, a diagnostic is generated after 40 seconds. If this proving input is jumped other nuisance diagnostics will occur. The exhaust fan proving input functions the same as the supply fan proving function. If the proving input fails to close in 40 seconds the economizer is cycled to the minimum position, and the exhaust fan is cycled off. This is a manual reset diagnostic. External control of these two fans is not recommended. 19
UNOCCUPIED BINARY OUTPUT RELAY This is a single pole double throw relay, rated at a maximum voltage of 24 VAC, 2 amps max. The contacts of this relay switch when the unit goes from the occupied mode to the unoccupied mode by means of the unoccupied binary input. The contacts will stay switched during these modes of operation: unoccupied, morning warm up, and daytime warm up. The contacts will return to the position shown on the unit schematic when the unit returns to the occupied mode. The intent of this binary output is to signal the VAV boxes or other terminal devices to go to a full open airflow position. The terminal connections are shown in Table 17. ALARM RELAY This is a single pole double throw relay, rated at a maximum voltage of 24 vac, 2 amps max. The contacts of this relay can be programmed from the unit Human Interface. This relay can be programmed to pick up on any one or group of diagnostics from the unit human interface. The terminal connections are shown in Table 17. Table 17 UNOCCUPIED OUTPUT RELAY ALARM OUTPUT RELAY TERMINAL # TERMINAL # COMMON NO NC COMMON NO NC 1TB16-13 1TB16-12 1TB16-14 1TB16-16 1TB16-15 1TB16-17 OTHER USEFUL INFORMATION Trane recommends the heating and cooling stages are controlled by changing the unit set points. The unit safeties and anti short cycle timers are integrated into our controls. Anyone who assumes direct control of these functions should be prepared to assume compressor and heat exchanger warranty responsibility. 20
Figure 1 Typical GBAS Analog Input Wiring Diagram for CV & VAV Control Options 21
Figure 2 GBAS Module for both CV & VAV Control Options 22
Trane A business of American Standard Companies www.trane.com For more information contact your local district office or e-mail us at comfort@trane.com Literature Order Number UN-PRB001-EN File Number UN-PRB001-EN 08/02 Supersedes RT-EB-109 Stocking Location Eagle, TraneNet Trane has a policy of continuous product data and product data improvement and reserves the right to change design and specifications without notice.