Laserfiche WebLink
B. Cold Piping(40 of to ambient): <br /> 1. Refrigeration suction lines between evaporator and compressor. <br /> 2. Hydronic water supply and return piping. <br /> C. Hot Low Pressure Piping(to 250 OF): <br /> ' 1. Hot gas refrigerant piping. <br /> TABLE NO.15250-2: MINEVIUM PIPE INSULATION <br /> INSULATION THICKNESS IN INCHES FOR <br /> PIPE SIM2 <br /> PIPING SYSTEM FLUID TEMP. RUNOUTS 1"and 1-1/4" 2'h" 5" 8"and <br /> TYPES RANGE.OF 2"1 smaller to 2" to 4" to 6" larger <br /> HEATING SYSTEMS <br /> Steam and hot water <br /> high pressure-temp. 306-450 1'Y2 2'% 2Y2 3 3'Y2 3'/z <br /> Med.pressure temp. 251-305 1%2 2 2% 2% 3 3 <br /> Low pressure temp. 201-250 1 1'h 1'/z 2 2 2 <br /> Low temperature 120-200 '/s 1 1 1'/2 1 YZ 11/2 <br /> ' Steam condensate <br /> (for leed water) Any 1 1 1'h 2 2 2 <br /> COOLING SYSTEMS <br /> Chilled water 40-55 '/2 h % 1 1 1 <br /> Refrigerant,or brine Below 40 I 1 1'/2 1%2 1 Y2 1'% <br /> 1 Runouts not exceeding 12 fat in length to individual terminal units. <br /> 2 For piping exposed to outdoor air,increase thickness by Y.inch. <br /> NOTES: <br /> 1. Provide hardwood blocks at all pipe hanger locations for 3"pipe and larger. <br /> 2. Provide thermal hanger shields for 6"pipe and larger. <br /> D. Insulation Omitted: Omit insulation for the following. <br /> 1. Hot low pressure piping within radiation enclosures or unit cabinets. <br /> 2. Cold piping within unit cabinets provided piping is located over drain pan. <br /> 3.04 DUCTWORK SYSTEM INSULATION <br /> A. Insulation Omitted: Do not insulate lined ductwork Flex ductwork in plenum spaces shall not be insulated. Refer <br /> to Section 158911.2.01.I-1. <br /> B. Ductwork-- <br /> 1. <br /> uctwork:1. Application Requirements: Insulate the following ductwork: <br /> a. Outdoor air intake ductwork between air entrance and fan inlet or HVAC unit inlet. <br /> b. HVAC supply ductwork between fan discharge,or HVAC unit discharge,and room terminal outlet. Do <br /> not insulate ductwork exposed within a conditioned space,i.e.gyms. <br /> 15250-5 No.99132-CP2 <br />