VAV HEATINGField WiringFor Unoccupied heating operation connect zone sensorwiring to terminals 13 and 14 of terminal block CTB1located inside the control panel (see Appendix 1).Miscellaneous ConnectionsAll units provided with a VFD include a factory mount-ed static pressure sensor (SPS1). The unit can alsohave an optional second static pressure sensor, (SPS2).The second static pressure transducer would be usedif the main supply duct split into two main branches.The control can be programmed to maintain the low-est input, highest input or the average of the two. Thesensor is factory wired and requires field installationof 1/4” ID sensor tubing to the selected duct location.A field supplied static pressure probe and tubing mustbe installed in the field prior to unit start-up.Refer to the unit IOM Form 145.05-NOM3 for detailson how to install the static pressure probe and tubing.ProgrammingOptions Key – Heating Subsection• HEATING SYS TYPE = NONE, ELECTRIC,HOT WATER/STEAM.• ELEC HEAT CAPACITY = 11 KW, 17 KW, 34KW, 68 KW.Setpoints Key – Heating Subsection• HEATING SAT = 80.0 – 115.00 F.• UNOCC ZONE HEATING SETPOINT = 45.0 –99.00 F.• HEAT LIMIT TEMPERATURE = 100.0 – 150.00 F.• RAT HEATING SETPOINT = 55.50 F – RATCOOLING SETPOINT -20 F.Program Key - Heating Subsection• HEATING SYSTEM = USER ENABLED.• NIGHT SET BACK = USER ENABLED, USERDISABLED.• HW VALVE ACTION = DIRECT, REVERSE.Only used with Hot Water and SteamHeat options.FORM 145.05-SU3 (611)ISSUE DATE 6/01/2011JOHNSON CONTROLS15SECTION 4 - VAV UNITS