Carrier 30GX Installation, Operation And Maintenance Instructions

Also see for 30GX Series: Installation, operation and maintenance instructions Installation, operation and maintenance instructions

174.2.5 - Description of the TEMPERATURES menuThis menu displays the unit operating temperatures. Alltemperatures are displayed in degrees Celsius. Access to thismenu is read-only.ITEM FORMAT DESCRIPTION0 ±nn.n Evaporator entering water temperature1 ±nn.n Evaporator leaving water temperature2* ±nn.n Condenser entering water temperature (if used)3* ±nn.n Condenser leaving water temperature (if used)4* ±nn.n Reclaim condenser entering water temperature (if used)5* ±nn.n Reclaim condenser leaving water temperature (if used)6 ±nn.n Saturated condensing temperature circuit A7 ±nn.n Saturated suction temperature circuit A8* ±nn.n Discharge gas temperature circuit A9* ±nn.n Discharge superheat temperature circuit A10* ±nn.n Motor temperature A111* ±nn.n Motor temperature A212* ±nn.n Saturated condensing temperature circuit B13* ±nn.n Saturated suction temperature circuit B14* ±nn.n Discharge gas temperature circuit B15 ±nn.n Superheat temperature circuit B16 ±nn.n Motor temperature B117* ±nn.n Motor temperature B218 ±nn.n Outdoor temperatureKey:n : numerical display* : This item is displayed in certain unit configurations only.Item 18 Outdoor temperatureThis item displays the outdoor temperatureif an outdoor temperature sensor isconnected to the 0-10 V d.c. analogue inputon the customer terminal block and if thatsensor has been calibrated (by CarrierService). If it has not been calibrated, thevalue displayed is the value of the incoming0-10 V d.c. signal.4.2.6 - Description of the PRESSURE menuThis menu displays the unit operating pressures. All pressuresare relative, and are expressed in kPa. Access to this menu isread-only.ITEM FORMAT DESCRIPTION0 nnnn Discharge pressure circuit A1 nnnn Suction pressure circuit A2 ±nnn Oil pressure compressor A13* ±nnn Oil pressure compressor A24 ±nnn Differential oil pressure compressor A15* ±nnn Differential oil pressure compressor A26 ±nnn Economizer pressure A17* ±nnn Economizer pressure A28 nnnn Discharge pressure circuit B9 nnnn Suction pressure circuit B10 ±nnn Oil pressure compressor B111* ±nnn Oil pressure compressor B212 ±nnn Differential oil pressure compressor B113* ±nnn Differential oil pressure compressor B214 ±nnn Economizer pressure B115* ±nnn Economizer pressure B2Key:n : numerical display* : This item is displayed in certain unit configurations only.NOTE: The setpoint selection contact may in exceptional casesbe configured as active (configuration by Carrier Service) ifthe unit operates in CCN mode as part of a master-slave link(see section 5.18).Item 13 Control pointThis is the setpoint used by the controller toadjust the temperature of leaving water.Control point = active setpoint + reset. Thereset is generally positive in cooling modeand negative in heating mode. See section4.2.7, calculating the reset.Item number 13 flashes (in block 1 of theuser interface) when the unit is in CCNoperating type and the control point isforced by the CCN.Item 14 Condensing setpointThis is the setpoint used by the controller toadjust the condensing or reclaim temperature.It refers to the normal condensing setpointin the following cases:• The unit is in operating type LocalOperation - Cooling Setpoint 1 (L-C1 orLC2).• The unit is in operating type CCN (CCn)and cooling mode, and is under networkcommand for normal mode (no reclaim).• The unit is in operating type Remote(rEM) and has received a command tooperate in cooling mode and normalcondensing type (no reclaim), from aremote contact (see section 3.4.6,description of remote contact).It refers to the reclaim setpoint in thefollowing cases:• The unit is in operating type Local -Cooling Setpoint 1 (LC1r or LC2r).• The unit is in operating type CCN (CCn)and cooling mode, and is under networkcommand for reclaim mode.• The unit is in operating type Remote(rEM) and has received a command tooperate in cooling mode and reclaimcondensing mode, from a remote contact(see section 3.4.6, description of remotecontact).The number for item 14 flashes (in block 1of the user interface) when the unit is inCCN operating mode and the condensationvalue is forced by the CCN.Item 15-16-18-19 Reserved for use by Carrier Service onlyItem 17 Heat reclaim mode indicator, circuits A/B(see section 5.20)