Envision Peripherals Geothermal Indoor Split Heat Pumps installation manual Dual Capacity Models

Page 27

ENVISION SERIES INSTALLATION MANUAL

Unit Operating Parameters

Dual Capacity Models

First Stage Operation

				Cooling -- No Desuperheater
Entering Water	Water Flow	Suction	Discharge		Superheat	Subcooling	Water Temp	Air Temp
Temp °F	GPM/Ton	Pressure	Pressure
		PSIG	PSIG				Rise °F	Drop °F DB

50	1.5	125-140	205-225		9-15	3-10	17-21	17-23
	3.0	120-135	190-210		9-15	3-10	8-12	17-23

70	1.5	135-145	260-290		9-18	5-11	16-20	17-23
	3.0	126-143	230-250		9-18	5-11	9-13	17-23

90	1.5	138-150	315-345		8-14	7-14	14-20	17-23
	3.0	136-148	300-330		8-14	7-14	8-12	17-23


				Heating -- No Desuperheater
Entering Water	Water Flow	Suction	Discharge		Superheat	Subcooling	Water Temp	Air Temp
Temp °F	GPM/Ton	Pressure	Pressure
		PSIG	PSIG				Drop °F	Rise °F DB

30	1.5	76-89	260-325		7-12	4-16	5-9	12-16
	3.0	80-93	265-330		7-12	4-16	3-7	14-18

50	1.5	105-120	295-355		7-14	4-16	7-11	18-22
	3.0	110-125	300-360		7-14	4-16	5-9	20-24

70	1.5	135-155	330-385		9-14	7-15	8-12	24-28
	3.0	140-160	335-390		9-14	7-15	6-10	22-30

Second Stage Operation

				Cooling -- No Desuperheater
Entering Water	Water Flow	Suction	Discharge		Superheat	Subcooling	Water Temp	Air Temp
Temp °F	GPM/Ton	Pressure	Pressure
		PSIG	PSIG				Rise °F	Drop °F DB

50	1.5	120-135	215-235		10-16	3-11	17-21	17-23
	3.0	115-130	200-220		10-16	3-11	8-12	17-23

70	1.5	121-136	270-305		9-15	5-12	16-20	17-23
	3.0	118-133	255-285		9-15	5-12	9-13	17-23

90	1.5	126-143	325-360		8-14	7-15	14-20	17-23
	3.0	123-140	310-340		8-14	7-15	8-12	17-23


				Heating -- No Desuperheater
Entering Water	Water Flow	Suction	Discharge		Superheat	Subcooling	Water Temp	Air Temp
Temp °F	GPM/Ton	Pressure	Pressure
		PSIG	PSIG				Drop °F	Rise °F DB

30	1.5	72-81	280-330		6-12	10-20	5-9	12-16
	3.0	76-85	285-335		6-12	10-20	3-7	14-18

50	1.5	100-115	305-370		6-12	6-18	7-11	18-22
	3.0	105-120	310-375		6-12	6-18	5-9	20-24

70	1.5	133-147	340-400		7-14	4-15	8-12	24-28
	3.0	138-152	345-405		7-14	4-15	6-10	22-30

Note: Cooling performance based on entering air temperatures of 80º F DB, 67º F WB.

Heating performance based on entering air temperature of 70º F DB.

27

Image 27

Contents 410A Refrigerant Ton Single Speed Ton Dual Capacity Envision Series Geothermal Indoor Split Heat PumpsModel Nomenclature Physical CharacteristicsTable of Contents General Installation Information Utilizing Existing Coil or Air Handler Equipment SelectionConnection to Air Coil Air Handler InstallationDual Fuel Systems Swivel Connections Residential Units Water PipingRows Tube Air Handler Coil DataLine Set Sizes Envision Matching Air Coil SurfaceSolenoid Valve Open Loop Well Water SystemsWater Quality Solenoid WiringMultiple Units on One Flow Center Closed Loop Ground Source SystemsWater Tank Preparation Desuperheater ConnectionsDesuperheater Startup Plumbing InstallationElectrical Data Thermostat WiringElectrical General24V Accessory relay see SW2 3 for description of operation Wiring SchematicsHp Total Microprocessor Control Cooling Operation Fan G onlyLockout Conditions STG1 STG2 STG3 Emerg Single Speed Units Operation Logic DataFreeze Sensing Setting DIP Switch SettingsRefrigeration Position Description System ServiceCharging the System Leak TestingSystem Evacuation Initial System Charge Calculation Determining Subcooling Pressure/Temperature Coversion Chart for R-410A Single Speed Models Unit Operating ParametersDual Capacity Models Before Powering Unit, Check The Following Unit StartupStartup Steps Final Evaluation Heating Cycle Analysis Unit Startup/TroubleshootingPressure Drop and Recommended Flow Rates Single SpeedDual Capacity Refrigerant Systems TroubleshootingLED Definitions and Diagnostics Standard Microprocessor ControlsReplacement Procedures Preventive MaintenanceEnvision NZ Split Dimensional Data Physical DimensionsInstallation Notes