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5085 Corporate Exchange Blvd. S.E. Grand Rapids, MI 49512 1.800.SKYTRON • 616.656.2906 • 616.656.2906 Page 78
Air Handler Operation for Equipment Removal This section is available as background to clarify why an increase in utility energy consumption will occur with the removal of internal loads from an operating room (OR). As seen in Figure A6-1 each air handler services a number of Operating Rooms. Due to the codes dictating operating room airflow, each OR must be supplied with a minimum outdoor air supply, and thus is a Constant Volume 100% outdoor air assembly. These ORs all require a certain heat load to be removed, signified by the Q’s. Q is dictated by the internal load from equipment, lighting, occupancy, and other heat gain. In the example below OR 2 requires 7,560 BTUH to be removed. With the supplied air, an air temperature differential of 7° F between the supply and return is required to meet that load. Therefore, operating rooms 1 and 3 will require the supplied air to be reheated by the specified amount in order to meeting that room’s set point. If equipment is removed from either OR 1 or 3 their respective internal loads (Q) will be reduced, but the drop in cooling load will be picked up by the reheat coils. Figure A6-1: Air Handler Airflow Diagram OTHER AHU TYPES This is a different in single zone, multizone or VAV assemblies. For these scenarios an equipment load reduction is a direct decrease in HVAC load, and in the case of variable airflow system a decrease in fan energy. The reheat required to maintain setpoint will only occur under heating conditions Salas O’Brien Engineers | expect a difference | Project No. 09104 Page 79
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PG&E EMERGING TECHNOLOGIES ASSESSME
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BACKGROUND Pacific Gas & Electric h
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Operating Room Lighting Replacement
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Table 2A: Kaiser Operating Light En
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CONCLUSIONS AND RECOMMENDATIONS Ope
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lack is calculated program assumes
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List all affected AHUs CHW CHW CHW
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OR Surgical Light Direct Analysis 6
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Operating Room 1 Salas O’Brien En
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OR 6 Internal Loads Load name Ext.
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Page 30 and 31: OR 8 Internal Loads Load name Ext.
Page 32 and 33: OR 10 Internal Loads Load name # Vo
Page 34 and 35: OR 11 Internal Loads Load name # Vo
Page 36 and 37: Operating Room 12 Salas O’Brien E
Page 38 and 39: Operating Room 12 Salas O’Brien E
Page 40 and 41: Detailed Savings Analysis (Continue
Page 42 and 43: OR Surgical Light Utilization Estim
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Page 46 and 47: OR 2 Supply temp vs Delta T 10 90 8
Page 48 and 49: OR 4 Return Temp 90 80 70 60 50 °F
Page 50 and 51: Bright, Cool, Comfortable Color cor
Page 52 and 53: LED Advanced Optics provide Superio
Page 54 and 55: Aurora Focusable Lighting Leadershi
Page 56 and 57: True Focus Control LED Lighthead fo
Page 58 and 59: Technical Data Optical Characterist
Page 60 and 61: Technical Data Optical Characterist
Page 62 and 63: LED5 2267mm 89 1/4" 3/4" Diameter C
Page 64 and 65: LED7 2716mm 107" 3/4" Diameter Cond
Page 66 and 67: LED55 2462mm 97" 3/4" Diameter Cond
Page 68 and 69: LED75 2716mm 107" 3/4" Diameter Con
Page 70 and 71: LED7TV5 2716mm 107" 3/4" Diameter C
Page 72 and 73: LED555TV 2657mm 105" 3/4" Diameter
Page 74 and 75: LED7TV55 2911mm 114 1/2" 3/4" Diame
Page 76 and 77: NOTE: FRONT EDGE OF "BACK-BOX" MUST
Page 78 and 79: 1. 2. 3. 4. RECESSED MOUNTING STRUC
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