Carrier PH5G-B Installation Instruction

PH5G-B: Installation InstructionManufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.11A230455Fig. 11 – Dissipation BoardA240155Fig. 12 – Refrigerant Detection Sensor 24 & 30 SizesA240156Fig. 13 – Refrigerant Detection Sensor 36-60 SizesTest ButtonIMPORTANT: Press the Test Button for approximately ONE SECONDto enter Test Mode. Pressing the Test button for a longer period canpossibly clear all fault code history (Table 1).A test button on the DSB may be used to verify proper dissipationsystem operation under each test condition listed below (Table 2). Afterpressing the test button, system will enter dissipation mode for 60seconds to verify correct operation.Required Minimum Dissipation AirflowThe Required Minimum Dissipation Airflow is listed in Table 3, is basedon refrigerant charge, and must be met or exceeded in Continuous FanMode. Refer to Table 6 for available blower speeds and the associatedCFM performance.Minimum Conditioned Space AreaThe Minimum Conditioned Space Area (Table 3) is the smallest allowedarea allowed to be served by this unit for proper dissipation and is basedon the factory charge amount. The Minimum Conditioned Space Areamust not be used in unit sizing, as the small area, will likely result inexcessive short-cycling of the unit.ExampleA 36 size unit will be installed in a residential home with a conditionedspace of 1800 sq. ft. (Conditioned space to be served entirely by theunit). The following speeds are preliminarily selected by the installerwith the resultant external static pressures:a. The Low blower speed (blue) is selected for the cooling withDehum speed, which delivers a 1006 CFM at .2 in. W.C. externalstatic pressure. (Table 6.)b. The Med blower speed (Red) is selected for the standard coolingspeed and delivers 1152 CFM at .4 in. W.C. external staticpressure (Table 6).From Table 3, the minimum conditioned space area for the 36 size is 122sq. ft. Since 1800 sq. ft. is greater then 122 sq. ft., the conditioned spaceis sufficient.Also from Table 3, the required minimum dissipation airflow for the 36size unit is 213 CFM. Since the Dehum feature is being used, the lowestcontinuous fan speed is the same as the cooling with Dehum fan speed.In this case, 1006 CFM. Since 1006 CFM is greater than 213 CFM, thecontinuous fan speeds are sufficient to deliver the required minimumdissipation airflow.Refrigerant Detection Sensor (RDS)Refrigerant Detection Sensor (RDS)Table 1 – Dissipation Board Test Button FunctionsHold Button Time (sec) Function1-4 Dissipation Mode for 60 sec5-29 Display flash code history30+ Flash code 63 rapid presses Clear flash code historyTable 2 – Required Operational Checks to Ensure ProperDissipation System FunctionTest # T-Stat Call Compressor IndoorFanElectric/GasHeatNormal Operation1 None Off Off Off2 Cool On On Off3 Heat Off On OnDissipation Activated4 None Off On Off5 Cool Off On Off6 Heat Off On OffWARNING!PERSONAL INJURY AND PROPERTY DAMAGEHAZARDRequired Minimum Dissipation Airflow must be met or exceeded withthe continuous fan speed selected.