Envision Residential Installation Manual RESIDENTIAL Geothermal/Water Source Heat Pumps • R-410A Refrigerant • 2, 2.5, 3, 3.
ENVISION RESIDENTIAL INSTALLATION MANUAL Table of Contents Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Closed Loop Ground Source Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Open Loop Ground Water Systems . . . . . . . . . . . .
ENVISION RESIDENTIAL INSTALLATION MANUAL Residential Model Nomenclature 1 N 2 D 3 V 4-6 048 7 A 8 1 9 1 10 1 Model Type N = Envision 11 C 12 T 13 L 14-15 AP Filter Option AP = AlpinePure 411* Blank = 2” MERV 11 Filter Compressor Type D = Dual Capacity S = Single Speed Return Air Configuration L = Left R = Right Cabinet Configuration V = Vertical H = Horizontal Discharge Air Configuration T = Top S = Side E = End B = Bottom R = Rear Unit Capacity Vintage A = 036-072 top discharge & horizon
ENVISION RESIDENTIAL INSTALLATION MANUAL General Installation Information Safety Considerations WARNING: Before performing service or maintenance operations on a system, turn off main power switches to the indoor unit. If applicable, turn off the accessory heater power switch. Electrical shock could cause personal injury. Installing and servicing heating and air conditioning equipment can be hazardous due to system pressure and electrical components.
ENVISION RESIDENTIAL INSTALLATION MANUAL General Installation Information cont. Installing Horizontal Units Remove and discard the compressor hold down shipping bolt located at the front of the compressor mounting bracket prior to setting the unit in place. Horizontal units are available with side or end discharge. Horizontal units are normally suspended from a ceiling by six 3/8-inch diameter threaded rods. The rods are usually attached to the unit by hanger bracket kits furnished with each unit.
ENVISION RESIDENTIAL INSTALLATION MANUAL General Installation Information cont. Duct System An air outlet collar is provided on vertical top and rear air discharge units and all horizontal units to facilitate a duct connection (vertical bottomflow units have no collar). A flexible connector is recommended for discharge and return air duct connections on metal duct systems. Uninsulated duct should be insulated with a minimum of 1-inch duct insulation.
ENVISION RESIDENTIAL INSTALLATION MANUAL General Installation Information cont. Water Quality In ground water situations where scaling could be heavy or where biological growth such as iron bacteria will be present, a closed loop system is recommended. The heat exchanger coils in ground water systems may, over a period of time, lose heat exchange capabilities due to a buildup of mineral deposits inside.
ENVISION RESIDENTIAL INSTALLATION MANUAL General Installation Information cont. Freeze Protection Set the freeze sensing switch SW2-2 on the printed circuit board for applications using a closed loop antifreeze solution to “LOOP”. On applications using an open loop/ground water system (or closed loop no antifreeze), set this dip switch to “WELL”, the factory default setting. (Refer to the DIP Switch Settings table in the Microprocessor Control section.
ENVISION RESIDENTIAL INSTALLATION MANUAL Closed Loop Ground Source Systems NOTE: For closed loop systems with antifreeze protection, set SW2-2 to the “loop.” position (Refer to the DIP Switch Settings table in the Microprocessor Control section.) Once piping is completed between the unit, pumps and the ground loop (see figure below), final purging and charging of the loop is required. A flush cart (or a 1.
ENVISION RESIDENTIAL INSTALLATION MANUAL Open Loop Ground Water Systems Typical open loop piping is shown below. Always maintain water pressure in the heat exchanger by placing water control valves at the outlet of the unit to prevent mineral precipitation. Use a closed, bladder-type expansion tank to minimize mineral formation due to air exposure.
ENVISION RESIDENTIAL INSTALLATION MANUAL Hot Water Generator Connections To maximize the benefits of the hot water generator a minimum 50-gallon water heater is recommended For higher demand applications, use an 80-gallon water heater or two 50-gallon water heaters connected in a series as shown below. Electric water heaters are recommended. Make sure all local electrical and plumbing codes are met for installing a hot water generator.
ENVISION RESIDENTIAL INSTALLATION MANUAL Hot Water Generator Connections cont. Plumbing Installation 1. Inspect the dip tube in the water heater cold inlet for a check valve. If a check valve is present it must be removed or damage to the hot water generator circulator will occur. 2. Remove drain valve and fitting. 3. Thread the 3/4-inch NPT x 3-1/2-inch brass nipple into the water heater drain port. 4. Attach the center port of the 3/4-inch FPT tee to the opposite end of the brass nipple. 5.
ENVISION RESIDENTIAL INSTALLATION MANUAL Electrical Connections General Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric Code, whichever is applicable. Unit Power Connection Connect the incoming line voltage wires to L1 and L2 of the contactor as shown in Figure 13C for single-phase unit.
ENVISION RESIDENTIAL INSTALLATION MANUAL Electrical Connections cont. Pump Wiring Figure 14: Pump Wiring 208-230/60/1 See Figure 14 for electrical connections from control box to pumps. Electronic Thermostat Installation R C Y1 Y2 W O G L 24VAC (Hot) 24VAC (Common) Compressor (1st Stage) Compressor (2nd Stage) Aux. Heat Reversing Valve Blower Relay System Monitor Note: DIP switch SW2-8 is required to be in the “OFF” position for the control to operate with FaultFlash or ComforTalk thermostats.
ENVISION RESIDENTIAL INSTALLATION MANUAL Electrical Data Single Speed ECM2 Compressor HWG Pump FLA Ext Loop FLA Fan Motor FLA Min Circ Amp Max Fuse/ HACR 18.8 21.0 30 22.6 25.8 35 23.9 27.4 40 7.0 26.9 30.4 40 4.0 26.4 30.6 45 7.0 29.4 33.6 50 Model Rated Voltage Voltage Min/Max MCC RLA LRA 022 208-230/60/1 197/254 14.0 9.0 48.0 17.0 0.4 5.4 4.0 030 208-230/60/1 197/254 20.0 12.8 58.3 21.0 0.4 5.4 4.0 036 208-230/60/1 197/254 22.0 14.1 73.0 26.
Standard PSC Motor Model 022 030 036 042 048 060 070 Fan Spd H M L H M L H M L H M L H M L H M L H M L Blower Size Motor HP 9x7 1/5 9x7 1/3 9x7 1/2 10 x 10 1/2 10 x 10 1/2 11 x 10 1 11 x 10 1 0 1110 850 750 1290 1100 910 1665 1465 1130 2010 1670 1220 2010 1670 1220 2430 2265 2075 2430 2265 2075 0.05 1095 845 745 1270 1090 905 1640 1445 1115 1975 1650 1215 1975 1650 1215 2400 2235 2050 2400 2235 2050 0.
ENVISION RESIDENTIAL INSTALLATION MANUAL Fan Performance Data - ECM2 Single Speed Speed Single Single MAX Speed MODEL MODEL 022 022 030 030 036 036 036 036 w/1hp* w/1hp* 042 042 042 042 w/1hp* w/1hp* 048 048 048 048 w/1hp* w/1hp* 060 060 070 070 MAX ESP ESP 0.50 0.50 0.50 0.50 0.50 0.50 0.75 0.75 0.50 0.50 0.75 0.75 0.50 0.50 0.75 0.75 0.75 0.75 0.75 0.
ENVISION RESIDENTIAL INSTALLATION MANUAL Vertical Dimensional Data ENVISION DIMENSIONAL DATA V1-V4 Top Air Discharge LEFT RETURN RIGHT RETURN P Q M O L Q L N R O R N 1.9in [4.8cm] TOP TOP T T 1.9in [4.
ENVISION RESIDENTIAL INSTALLATION MANUAL Vertical Dimensional Data Rear Air Discharge 1.90 1.90 K J I E F G H D A FRONT O R Q T T Q R P M M S S L C L C C C N N A REAR VIEW LEFT RETURN B B A SIDE VIEW LEFT RETURN SIDE VIEW RIGHT RETURN REAR VIEW RIGHT RETURN Overall Cabinet Water Connections Vertical Topflow Model A Width B Depth C Height D Loop In E Loop Out F HWG In G HWG Out H Condensate in. cm. in. 042-049 cm. in. 060-072 cm. 25.6 65.0 25.6 65.0 25.6 65.0 31.
ENVISION RESIDENTIAL INSTALLATION MANUAL Vertical Dimensional Data Bottom Air Discharge RIGHT RETURN LEFT RETURN 1.70 (4.3 cm) 4 3 C C 2 S 1 S K J T T F I D B B LEFT SIDE RIGHT SIDE Q R 1.90 (4.
ENVISION RESIDENTIAL INSTALLATION MANUAL Horizontal Dimensional Data TOP VIEW P Q 2.1in [5.4cm] MOUNT (2) HANGER BRACKETS AS SHOWN TO ALLOW ACCESS TO FILTER 2ft [61cm] Primary Service Access SIDE DISHCARGE VIEW FRONT VIEW A S 1.9in [4.
ENVISION RESIDENTIAL INSTALLATION MANUAL Physical Data - Single Speed SINGLE SPEED Model NS022 NS030 NS036 Compressor (1 each) NS042 NS048 NS060 NS070 Copeland Scroll Factory Charge R410A, oz [kg] Vertical 62 [1.76] 62 [1.76] 82 [2.32] 82 [2.32] 98 [2.78] 110 [3.12] 146 [4.14] Factory Charge R410A, oz [kg] Horizontal 60 [1.70] 66 [1.87] 82 [2.32] 82 [2.32] 98 [2.78] 94 [2.67] 122 [3.
Air Coil Number of rows 3 Filter Standard - 2" [51mm] Pleated 3 1 - 18 x 32 ENVISION RESIDENTIAL INSTALLATION MANUAL MERV11 Throwaway, in [mm] [457 x 813] 3 1 - 18 x 32 [457 x 813] 3 3 1 - 20 x 37 [686 x 940] 1 - 20 x 20 [508 x 508] 1 - 20 x 22 [508 x 559] 3 1 - 20 x 20 [508 x 508] 1 - 20 x 22 [508 x 559] 3 1 - 20 x 25 [508 x 635] 1 - 20 x 22 [508 x 559] 1 - 20 x 25 [508 x 635] 1 - 20 x 22 [508 x 559] Weight - Operating, lb [kg] 307 [139] 322 [146] 370 [168] 385 [175] 425 [193] 460 [2
Violet(2) NOTE 10 Optional Electronic Air-Filter Optional Remote Unit Without Loop Pump SL1 Out SL1 In C NOTE 2 NOTE 9 L1 G O W SW4 CC CC-GND 3 7 Y R R R R R R G 3 Acc NO 2 2 Acc NC 1 1 Acc Com P3 NOTE 3 6 Not Used 5 3 4 C C SL1 In SL1 Out LED 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 *Green LED not flashing Drain Water Flow High Press Low Press / CA Air Flow Status DHW Limit DHW off Field Selection Dips - #1 On, #6 On, #7 On Drain pan overflow Lockout FP thermis
ENVISION RESIDENTIAL INSTALLATION MANUAL Wiring cont.
97P774-01 6/29/06 ENVISION RESIDENTIAL INSTALLATION MANUAL With optional ' EA' Series Auxiliary ElectricHeat Typical schematic shown Auxiliary Electric Heat Power 208-230/60/1 L2 G NOTE 5 L4 L2 P9 L1 L1 L3 G F2 1 2 Grn 3 Brn 5 Brn 4 Or P8 Blu Org Violet PB2 Pink Blk Yel Grn 4 Yel 3 Blk 2 Blk Gray 1 Gray 2 3 4 5 Yel ER1 Gray NO 1 Pink Pink Gray P11 Gray ER2 P7 ECM2 Fan Motor NO PWM 15 16 10 RPM 3 RPM grnd C2 On/Off ER3 Blk Gray HE1 1 Yel 2 Blk
ENVISION RESIDENTIAL INSTALLATION MANUAL Wiring Schematics cont.
97P774-02 6/29/06 ENVISION RESIDENTIAL INSTALLATION MANUAL With optional ' EA' Series Auxiliary ElectricHeat Typical schematic shown Auxiliary Electric Heat Power 208-230/60/1 L2 G NOTE 5 L4 L2 P9 L1 L1 L3 G F2 1 2 Grn 3 Brn 5 Brn 4 Or P8 Blu Org Violet PB2 Pink Blk Yel Grn Pink 4 Pink Yel 3 Yel Blk 2 Blk Gray 1 Gray ER1 Gray NO 1 2 3 4 5 Gray P11 Gray ER2 P7 ECM2 Fan Motor NO PWM 15 16 10 RPM 3 RPM grnd C2 On/Off ER3 Blk Gray HE1 1 Yel Blk 3
ENVISION RESIDENTIAL INSTALLATION MANUAL Microprocessor Control Startup signal is made available for a fault LED at the thermostat. The “fault retry” feature is designed to prevent nuisance service calls. The unit will not operate until all the inputs and safety controls are checked for normal conditions. At first powerup, a four-minute delay is employed before the compressor is energized. Diagnostics Components are sequenced and delayed for optimum space conditioning performance.
ENVISION RESIDENTIAL INSTALLATION MANUAL Microprocessor Control cont. Fan (G only) ECM blower changes from medium to high speed 15 seconds after the “Y2” input. The fan starts on low speed (PSC ON). Regardless of fan input “G” from thermostat, the fan will remain on low speed for 30 seconds at the end of each heating, cooling or emergency heat cycle. The Comfort Alert will delay the second stage compressor until 5 seconds after it receives a “Y2” from the board.
ENVISION RESIDENTIAL INSTALLATION MANUAL Microprocessor Control cont. Freeze Detection (Water Flow) This lockout mode occurs when the freeze thermistor temperature is at or below the selected freeze sensing point (well 30°F or loop 15°F) for 30 continuous seconds. Condensate Overflow This lockout mode occurs when the condensate overflow level has been reached for 30 continuous seconds. Fan RPM The control board monitors fan RPM to sense operation.
ENVISION RESIDENTIAL INSTALLATION MANUAL Microprocessor Control cont. Compressor Monitoring/Comfort Alert The Comfort Alert displays abnormal compressor conditions through a unique flash code and communicates the conditions to the heat pump microprocessor control. The heat pump microprocessor will determine which fault to act on and ignore. Fault codes 2 (system pressure), 4 (locked rotor), 6 (open start circuit), and 7 (open run circuit) will result in a lockout. All other fault codes are passive.
ENVISION RESIDENTIAL INSTALLATION MANUAL Microprocessor Control cont. Thermostat Displays Fault Flash When using a TA32W01 or TP32W02 thermostat and SW2-8 is in the pulsing “L” position, FaultFlash will enable a user to view the thermostat and count the fault indicator flashes to determine the lockout condition the unit is experiencing.
ENVISION RESIDENTIAL INSTALLATION MANUAL Microprocessor Control cont. DIP Switch Settings Prior to powering unit, ensure that all DIP switches on SW2 and SW3 are set properly according to the tables below. FACTORY SETUP DIP SWITCHES (SW3) DIP SWITCH NUMBER DESCRIPTION OFF POSITION ON POSITION SW 3- 1 Dual Capacity/Single-Speed Configures the control for single-speed compressor operation or dual capacity operation.
ENVISION RESIDENTIAL INSTALLATION MANUAL Unit Startup Before Powering Unit, Check The Following: NOTE: Remove and discard the two compressor hold down shipping bolts located at the front and rear of the compressor mounting bracket. The bolts can then be discarded. • • • • • • • • • • • • • • • • • High voltage is correct and matches nameplate. Fuses, breakers and wire size correct. Low voltage wiring complete. Piping completed and water system cleaned and flushed. Air is purged from closed loop system.
ENVISION RESIDENTIAL INSTALLATION MANUAL Operation Logic Data OPERATION LOGIC HEATING STG1 STG2 COOLING STG3 EMERG STG1 STG2 FAN ON SL1 - IN ON SINGLE SPEED UNITS Compressor On On On Off On On - - ECM2 Normal Med High High High Med High Low - ECM2 Dehumidify Med High High High 85% Med 85% High Low - PSC On On On On On On On - Rev Valve Off Off Off Off On On - - Loop Pump On On On Off On On - On DHW Pump On Off Off Off On On - - Aux He
ENVISION RESIDENTIAL INSTALLATION MANUAL Unit Operating Parameters Single Speed Models Entering Water Temp °F 50 70 90 Entering Water Temp °F 30 50 70 Water Flow GPM/Ton Cooling -- No Hot Water Generator 1.5 Suction Pressure PSIG 133 - 148 Discharge Pressure PSIG 205 - 225 3.0 1.5 129 - 144 139 - 154 185 - 205 280 - 300 3.0 137 - 152 250 - 270 9 - 12 1.5 143 - 158 360 - 380 8 - 11 3.0 141 - 156 330 - 350 9 - 12 8 - 12 Water Flow GPM/Ton 1.5 3.0 1.5 3.0 1.5 3.
ENVISION RESIDENTIAL INSTALLATION MANUAL Unit Operating Parameters cont. Dual Capacity Models First Stage Operation Cooling -- No Hot Water Generator Entering Water Temp °F 50 70 90 Water Flow GPM/Ton 1.5 3.0 1.5 3.0 1.5 3.
ENVISION RESIDENTIAL INSTALLATION MANUAL Pressure Drop Single Speed Models Dual Capacity Models Pressure Drop (psi) Pressure Drop (psi) Model GPM 30°F 50°F 70°F 90°F 110°F 0.7 1.3 2.2 3.6 026 full load 4.0 6.0 8.0 10.0 1.4 2.8 4.7 7.0 1.3 2.6 4.4 6.6 1.2 2.4 4.1 6.2 1.1 2.3 3.8 5.8 1.0 2.1 3.5 5.3 1.2 2.5 4.2 6.3 1.1 2.3 3.9 5.8 026 part load 3.0 5.0 7.0 9.0 0.8 2.0 3.6 5.8 0.7 1.8 3.4 5.5 0.7 1.7 3.2 5.1 0.7 1.6 3.0 4.8 0.6 1.5 2.8 4.4 0.9 1.8 3.0 5.5 0.8 1.7 2.8 5.1 0.8 1.
ENVISION RESIDENTIAL INSTALLATION MANUAL Troubleshooting Standard Microprocessor Controls To check the unit control board for proper operation: 1. Disconnect thermostat wires at the control board. 2. Jumper the desired test input (Y1, Y2, W, O or G) to the R terminal to simulate a thermostat signal. 3. If control functions properly: • Check for thermostat and field control wiring (use the diagnostic inputs mode). 4.
ENVISION RESIDENTIAL INSTALLATION MANUAL Preventive Maintenance Water Coil Maintenance 1. Keep all air out of the water. An open loop system should be checked to ensure that the well head is not allowing air to infiltrate the water line. Lines should always be airtight. 2. Keep the system under pressure at all times. It is recommended in open loop systems that the water control valve be placed in the discharge line to prevent loss of pressure during off cycles.
Manufactured by WaterFurnace International, Inc. 9000 Conservation Way Fort Wayne, IN 46809 www.waterfurnace.com IM1000AN 12/09 Product: Type: Size: Document: Envision Residential Geothermal/Water Source Heat Pumps 2-6 Ton Single Speed 2-6 Ton Dual Capacity Installation Manual © 2009 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794.
