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ENERVENT+© SERIES: EVT-09 EVT-19, EVT-28, EVT-36, EVT-46,
ENERGY RECOVERY VENTILATOR WITH OPTIONAL TEMPERING
TABLE OF CONTENTS
I.
MODEL NUMBER DECODER..................................................... 2
II.
GENERAL.................................................................................... 3
III.
PARTS ARRANGEMENT............................................................. 3
IV.
BASIC UNIT - STANDARD FEATURES............................... 4
OPTIONS and ACCESSORIES............................................ 5
V.
DIMENSIONS............................................................................... 5
ENERGY RECOVERY MODE.............................................. 6
TEMPERING MODE (NEUTRAL AIR).................................. 6
HOW IT WORKS.................................................................. 6
SHIPPING and PACKING LIST............................................ 6
SHIPPING DAMAGE........................................................... 6
REQUIREMENTS................................................................ 7
POSITIONING (MIN CLEARANCES).................................. 7
DOWNFLOW APPLICATION............................................... 8
HORIZONTAL FLOW APPLICATION.................................. 8
IX. RIGGING and LIFTING............................................................... 9
X.
UNIT INSTALLATION
DUCT SIZING and CONNECTION...................................... 9
GAS PIPING (OPTION)....................................................... 9
CONDENSATE DRAIN CONNECTIONS (OPTION)........... 10
WATER COIL CONNECTIONS (OPTION).......................... 11
A.
BASE UNIT POWER SUPPLY............................................ 12
POST-HEAT POWER SUPPLY (OPTION).......................... 12
PRE-HEAT POWER SUPPLY (OPTION)............................ 13
CONTROL WIRING............................................................. 13
3 PH VOLTAGE PHASING................................................ 14
SPEED SETTING.............................................................. 14
PULLEY ALIGNMENT........................................................ 14
BELT ADJUSTMENT.......................................................... 14
FIELD-FURNISHED BLOWER DRIVES............................ 15
A.
ELECTRIC PRE-HEAT........................................................ 15
TEMPERING COILS........................................................... 15
INSTALLATION, START-UP AND
MAINTENANCE INSTRUCTIONS
EVT-62, EVT-74, EVT-88, EVT-10, EVT-12
Energy recovery COMPONENT certified to the
AHRI Air-to-Air Energy Recovery Ventilation
Equipment Certification Program in accordance
with
AHRI
Standard
performance in packaged equipment may vary.
1060-2000.
Actual
C.
ELECTRIC POST-HEAT...................................................... 16
D.
GAS POST-HEAT................................................................ 16
E.
MOTORIZED DAMPERS.................................................... 16
F.
DIRTY FILTER SENSOR.................................................... 16
G.
FROST CONTROL............................................................. 16
H.
CO2 SENSOR.................................................................... 17
I.
ROTATION SENSOR.......................................................... 17
J.
SMOKE DETECTORS........................................................ 17
K.
LOW AMBIENT KIT............................................................. 17
L.
SENSIBLE-ONLY ERC....................................................... 17
M.
MERV 11 and 13 AIR FILTERS.......................................... 17
N.
O.
FREE AIR APPLICATION................................................... 17
P.
GFCI SERVICE OUTLET.................................................... 17
Q.
EME INTAKE LOUVERS.................................................... 17
R.
VFD BLOWER CONTROL................................................. 17
XIV. EVT SEQUENCE OD OPERATION........................................... 18
A.
WIRING............................................................................. 23
B.
FAN WHEELS................................................................... 23
C.
FAN RPM.......................................................................... 23
D.
VIBRATION....................................................................... 23
E.
TEMPERING COILS......................................................... 24
F.
ENERGY RECOVERY CASSETTE.................................. 24
G.
ELECTRIC POST-HEAT.................................................... 24
H.
GAS POST-HEAT.............................................................. 24
A.
INTAKE HOOD MESH FILTER(S)..................................... 33
B.
SUPPLY AND RETURN AIR FILTERS.............................. 33
C.
TEMPERING COILS.......................................................... 34
D.
ENERGY RECOVERY CASSETTE (ERC)........................ 34
E.
GAS POST-HEAT............................................................... 35
F.
BLOWER COMPONENTS................................................. 37
XVII. VFD FACTORY SET POINTS.................................................. 38
XVIII. WIRING DIAGRAMS............................................................... 47
XX.
START UP INFORMATION SHEET........................................ 60
REVT-05ERV
APRIL 30 , 2020
SUPERSEDES: 01-23-20
ETL Certified per UL 1995
and CSA 22.2
1
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Related Manuals for Ruskin ENERVENT+ EVT-09 Series
Summary of Contents for Ruskin ENERVENT+ EVT-09 Series
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Page 1: Table Of Contents
INSTALLATION, START-UP AND MAINTENANCE INSTRUCTIONS REVT-05ERV APRIL 30 , 2020 SUPERSEDES: 01-23-20 ENERVENT+© SERIES: EVT-09 EVT-19, EVT-28, EVT-36, EVT-46, EVT-62, EVT-74, EVT-88, EVT-10, EVT-12 ENERGY RECOVERY VENTILATOR WITH OPTIONAL TEMPERING Energy recovery COMPONENT certified to the AHRI Air-to-Air Energy Recovery Ventilation Equipment Certification Program in accordance ETL Certified per UL 1995 with... -
Page 2: Model Number Decoder
I - MODEL NUMBER DECODER REVT-05ERV... -
Page 3: General
EXHAUST AIR HOOD DOUBLE-WALL CONSTRUCTION OUTDOOR AIR HOOD MODULAR FRAME CONTROLS DAMPER ACCESS DOOR DEFROST CONTROLS AIR FILTERS ENERGY RECOVERY CASSETTE TEMPERING COILS VIBRATION ISOLATORS SILENT-PRO BLOWERS BLOWER MOTOR SUPPLEMENTAL POST-HEAT AIRFLOW CHOICE BASE RAIL FIGURE 1 - TYPICAL CABINET FEATURES AND OPTIONS 5 different cabinet sizes. -
Page 4: Features And Option F
6. SILENT-PRO® BLOWERS Manufactured 13. CONTROLS - All internal electrical components specifically for Ruskin Rooftop Systems by Lau are factory wired for single-point power connection. Industries to a proprietary specification. Shafts are Units with electric pre-heat and/or post-heat are wired ground and polished steel mounted in permanently with field supplied independent power supply. -
Page 5: Options And Accessories
B. OPTIONS and ACCESSORIES out switch, flame sensor and combustion air inducer proving switch protect system operation. 14. DAMPERS - Parallel-blade, motorized or gravity, damper assembly for outdoor or exhaust airflow. Electric Post-Heat - An ETL Certified Component, Aluminum blades with galvanized steel frames. with controls wired at the factory. -
Page 6: Basic Operating Modes
During the summer cooling season the latent heat can VI - BASIC OPERATING MODES only be removed by condensing that vapor below its dew A. ENERGY RECOVERY MODE point with the optional cooling coil (water or refrigerant) and draining off the condensate or by absorbing it from The Energy Recovery Mode utilizes two blowers operating the moist supply air stream and then transferring it to the continuously with one supplying the required VOLUME... -
Page 7: Requirements
1. Turn each blower wheel by hand to ensure it turns freely and does not bind. ALL UNITS WITH GAS POST-HEAT 2. Inspect dampers (if supplied) for free operation of all OPTION - 42 INCH MINIMUM moving parts. TO COMBUSTIBLE MATERIAL 3. -
Page 8: Downflow Application
6. When installing a unit equipped with optional gas 9. Local codes may supersede any of the proceeding or electric post-heat on a combustible surface, a provisions. RMF must be provided to Ruskin Rooftop System’s specifications. B. DOWNFLOW APPLICATION C. HORIZONTAL FLOW APPLICATION... -
Page 9: Rigging And Lifting
Supports must be constructed of steel or suitably LIFTING POINT SHOULD BE DIRECTLY treated wood materials. ABOVE CENTER OF GRAVITY 4. If slab-mounted: top of support slab should be approximately 4 inches (102 mm) above finished grade and located so no run-off water from higher IMPORTANT - ALL PANELS MUST ground can collect around the unit. -
Page 10: Condensate Drain Connections (Option)
2. A manual gas shut-off valve (furnished by installer) For natural gas units, operating pressure at the must be installed immediately adjacent to the point unit gas connection must be a minimum of 4.7 where the gas supply enters the cabinet. Codes may i.w.c. -
Page 11: Water Coil Connections (Option)
NOTE: The appliance gas valve can be damaged if subjected to more than 0.5 psig (3.48 kPa). EXTERNAL CONNECTIONS TEMPERING COILS CONDENSATE WATER DIRECT SPLIT COILS EXPANSION 2 STAGE & 5:1 UNIT MAIN & AUX MANIFOLD 10:1 MODULATION SUPPLY & MODULATION LIQUID SUCTION RETURN... -
Page 12: Electrical Connections
maintenance. Algae can form in the drain pan and A. BASE UNIT POWER SUPPLY trap resulting in reduced water flow, which can cause a WARNING backup into the unit. Regular maintenance can prevent this condition. Electric shock hazard. cause injury or death. Before attempting to perform any service or maintenance, turn the electrical power to unit OFF at disconnect switch(es). -
Page 13: Pre-Heat Power Supply (Option)
3. E VT-28, -36, -46, -62, -74, -88, -10 and -12 - After entry through exterior panel, wires are routed up into the back side of factory installed Post-Heat Fuse Box to the Power Distribution Block(s). C. PRE-HEAT POWER SUPPLY (OPTION) Do not apply power or close disconnect switch until installation is complete. -
Page 14: Blower Operation
INPUT/OUTPUT FAC CONTROLLER EXPANSION #1 TRANSFORMERS INPUT/OUTPUT BMS CONNECTION EXPANSION #2 TERMINAL STRIP CONTROLLER RELAYS POWER DISCONNECT WHEEL CONTACTOR FIGURE 15 - TYPICAL CONTROLS LAYOUT C. PULLEY ALIGNMENT XII - BLOWER OPERATION All Pulleys are laser aligned in the factory during A. -
Page 15: Field-Furnished Blower Drives
Pages 44-45 to determine components required for a) EVT-74 16 TON 32 TON EVT-88 19 TON 37 TON the desired rpm, b) the Ruskin part number and c) the EVT-10 21 TON 43 TON corresponding manufacturer’s part number. EVT-12 26 TON... -
Page 16: Electric Post-Heat
Exhaust Air - Mounts between the exhaust blower and ELECTRIC POST-HEAT - REQUIRED MINIMUM AIR FLOW the return air exhaust hood. Operates in conjunction with UNIT NON CFM MAX KW KW AVAIL MIN CFM Motorized Intake Air Damper. Powered by B31 damper STAGES EVT-09 1,000... -
Page 17: Co2 Sensor
installed options. MERV 8 filters are 30-35% efficient. EXHAUST AIR TEMPERATURE AND ERW EFFECTIVENESS MERV 11 provides 60-65% efficiency at roughly the F AND 20% RH F AND 30% RH F AND 40% RH INDOORS INDOORS INDOORS same resistance level. The MERV 13 filter achieves the ERW EFF DESIGN DESIGN... -
Page 18: Evt Sequence Od Operation
Inputs/Outputs of the controller to monitor and control XIV - EVT SEQUENCE OF OPERATION (JCI) the unit’s behavior. EVT Communications • Control Points: The unit communication baud rate is set at 38400. The Control points are intended to control the unit’s MAC Address and device instance is set to customer behavior. - Page 19 Object Name Description (Control Points) Instance Number SAFLOW-SP-IN Supply Air Flow Set Point Input (For the units with VFD) AV 10188 EAFLOW-SP-IN Exhaust Air Flow Set point Input (For the units with VFD) AV 10091 CO2-SP-IN CO2 Set point Input (For the units with VFD) AV 10185 HTG-SP Heating Set Point (For the units with Gas Heat)
- Page 20 CLG1-SIG Cooling 1 Signal (Y1 From Thermostat) BI 24108 CLG2-SIG Cooling 2 Signal (Y2 From Thermostat) BI 24111 HTG1-SIG Heating 1 Signal (W1 From Thermostat) BI 24114 HTG2-SIG Heating 2 Signal (W2 From Thermostat) BI 24117 START-UP Start Up Mode Flag BV 17740 SMOKE-MODE Smoke Control Mode Flag...
- Page 21 Low Ambient Control Mode (Standard) Cooling Control Mode (Optional) Low Ambient Control is a mode of operation that monitors Cooling control mode is responsible for the control of the Exhaust Air Temperature and compares to the set optional cooling coils shipped with the unit. The cooling point "LA-TEMP-MIN"...
- Page 22 4. The unit will activate the furnace and modulates 5. Once the Supply Air Temperature reaches to the the flame to maintain Supply Air Temperature to its Heating set point with a dead band of 2°F, it will heating set point. deactivate the furnace.
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Page 23: Unit Startup
This mode will only engage if "Cooling Control Mode", C. FAN RPM "Low Ambient Control Mode", "Smoke Control Mode", The adjustable sheave on both the supply and the "Post Heat Control Mode", "Pre-Heat Control Mode", exhaust blowers are factory set to the mid-range rpm "Start Stop Jog Control Mode"... -
Page 24: Tempering Coils
E. TEMPERING COILS WARNING Water Coils - Leak check all system joints to insure Danger of explosion. Can cause injury connections are sufficiently tight. Check condensate drain or product or property damage. If to be certain that a properly configured trap is present. overheating occurs or if gas supply Refrigerant Coil - Since the manufacturer does not fails to shut off, shut off the manual gas... - Page 25 CAUTION GAS MANIFOLD PRESSURE - i.w.g. (kPa) HIGH FIRE LOW FIRE ALTITUDE - ft. (m) For safety, connect a shut-off valve between the EVT-09 thru EVT-09 thru EVT-12 EVT-12 EVT-10 EVT-10 manometer and the gas tap to permit shut off of gas 0 - 2000 (0 - 610) 3.7 (0.92) 3.5 (0.87)
- Page 26 IGNITION CONTROL BOARD GAS HEAT CONTROL COVER FLUE BOX COVER STAINLESS STEEL HEAT IGNITION CONTROL BOARD EXCHANGER TUBES COMBUSTION AIR INDUCER GAS HEAT CONTROLS HEAT EXCHANGER TUBES (LOCATION FOR EVT-10 & -12) *ALUMINIZED (STD: EVT-09THRU -88) *STAINLESS STEEL(STD: EVT-10,-12) OPTION: EVT-09 THRU -88 EXTERNAL CONNECTION GAS SUPPLY (SEE FIGURE 9) SINGLE STAGE GAS VALVE...
- Page 27 8. Close the heat section access door. 9. Turn gas supply to "ON" position. 10. Turn electrical power on. 11. Set thermostat switch to "HEAT" and turn to the highest setting. FIGURE 25 - IGNITION CONTROL TIMING 12. LED light at the ignition will light up. LED Faults and Operation Failures 13.
- Page 28 energized. The Gas Valve and Combustion Air 9. When the warm-up period expires, modulation of the Inducer remain energized for a 2-minute warm-up system is handed over to the Building Management period regardless of what the thermostat calls for. System. 7.
- Page 29 FACTORY INSTALLED OPTIONS WIRING DIAGRAMS Optional Dirty Filter Optional Pivot Optional Smoke Detector Optional Rotation Sensor Optional MOH / MEH Optional CO Sensor Optional Bypass Optional VFD Optional DX Coil REVT-05ERV...
- Page 30 UNIT WIRING DIAGRAM REVT-05ERV...
- Page 31 UNIT WIRING DIAGRAM - CONTINUED REVT-05ERV...
- Page 32 FACTORY INSTALLED OPTIONS WIRING DIAGRAMS- CONTINUED Optional Heat / Cool Inputs Optional Pre/Post Heat REVT-05ERV...
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Page 33: Routine Maintenance
8. For troubleshooting purposes, an ignition attempt B. SUPPLY AND RETURN AIR FILTERS after lockout may be re-established manually by Supply Air Filters - Located upstream of the Enthalpy moving the thermostat switch to "OFF" and then Wheel as shown in Figure 27. Should be checked return to "HEAT"... -
Page 34: Tempering Coils
AIR FILTER SPECIFICATIONS VENT PLUG ACCESS PANEL SUPPLY AIR FILTERS EXHAUST AIR FILTERS VENT PLUG - CHILLED WATER COIL UNIT VENT PLUG - HOT WATER COIL EVT-09 EVT-19 EVT-28 EVT-36 EVT-46 EVT-62 EVT-74 EVT-88 EVT-10 EVT-12 TABLE 10 - SUPPLY AND EXHAUST FILTER SPECIFICATIONS C. -
Page 35: Gas Post-Heat
If the belt must be replaced, contact the Figure 31. Reverse procedure for segment removal. local Ruskin representative for ordering. A. Unlock two segment retainers (one on each side New link belts generally need to be stretched to fit and in of the selected segment opening). - Page 36 The Spark Electrode is connected to the ignition control by an 8 mm silicone-insulated, stranded, high voltage wire. The wire uses a ¼" female quick-connect on the electrode end and a female spark plug- type terminal on SPARK IGNITOR the ignition control end. BURNER RACK ASSEMBLY NOTE: In order to maximize spark energy to the Electrode, the high voltage wire should not touch...
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Page 37: Blower Components
Under normal operating conditions, the combustion air BLOWER ACCESS DOOR inducer wheel should be checked and cleaned prior to the heating season. However, it should be examined periodically during the heating season to establish an ideal cleaning schedule. With power supply disconnected, the condition of the inducer wheel can be determined by removing the Flue Vent (Figure 19) and looking through the discharge opening. -
Page 38: Vfd Factory Set Points
Fan Bearings - Enervent units have pillow block bearings XVII - VFD FACTORY SET POINTS that require proper lubrication at regular intervals to extent bearing life and to prevent premature failure. Modulating Control for Fan Speed – Variable Frequency Table 11 shows the recommended lubrication schedule Drives (VFD) for the blower are factory set to receive a under normal operating conditions. - Page 39 EVT Unit# EVT-09 EVT-19 EVT-28 EVT-36 EVT-46 CFM Range (Min-Max) 600- 1,000 900- 1,900 1,600-2,800 2,400-3,600 3,000- 4,600 ERC Model 2510C 3019C 3628 4136 4646 Model A9 x 4AT A10 x 6A A12 x 6A A12 x 9A A15 x 11A Supply Blower Shaft Dia.
- Page 40 REVT-05ERV...
- Page 41 EVT-09 SUPPLY & EXHAUST AIR PERFORMANCE RATINGS TOTAL STATIC PRESSURE (In. w.g.) OUTLET VOLUME VELOCITY 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 (CFM) (FPM) 1250 1120 0.20 1338 0.28 1536 0.37 1721 0.47 1893 0.58 1458 1249 0.29 1446 0.38 1624 0.48...
- Page 42 EVT-46 SUPPLY & EXHAUST AIR PERFORMANCE RATINGS TOTAL STATIC PRESSURE (In. w.g.) OUTLET VOLUME VELOCITY 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 (CFM) (FPM) 3000 1887 0.71 1.01 1.32 1001 1.65 1107 1.99 1205 2.34 3400 2138 0.96 1.29 1.64 1024 2.00...
- Page 43 EVT-88 EXHAUST AIR PERFORMANCE RATINGS TOTAL STATIC PRESSURE (In. w.g.) OUTLET VOLUME VELOCITY 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 (CFM) (FPM) 6400 2230 2.12 2.81 3.54 4.29 5.06 1069 5.85 1145 6.67 1217 7.50 7000 2439 2.63 3.39 4.17 4.97 1004...
- Page 44 REVT-05ERV...
- Page 45 REVT-05ERV...
- Page 46 REVT-05ERV...
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Page 47: Wiring Diagrams
XVIII - WIRING DIAGRAMS UNIT WIRING DIAGRAM REVT-05ERV... - Page 48 UNIT WIRING DIAGRAM - CONTINUED REVT-05ERV...
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Page 49: Factory Installed Options Wiring Diagrams
XIX- FACTORY INSTALLED OPTIONS WIRING DIAGRAMS Optional Dirty Filter Optional Pivot Optional Smoke Detector Optional Rotation Sensor Optional MOH / MEH Optional CO Sensor Optional Bypass Optional VFD Optional DX Coil REVT-05ERV... - Page 50 Optional Heat / Cool Inputs Optional Pre/Post Heat REVT-05ERV...
- Page 51 EVT-09 thru EVT-19 Single Stage 240/480/575V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Transformer, Control Heating Demand, Thermostat DIAGRAM 1 - ELECTRIC POST-HEAT EVT-28 thru EVT-62 Single Stage 240/480/575V EVT-74 thru EVT-12 Single Stage 480/575V Legend Automatic, Limit (reset Thermal cut-out)
- Page 52 EVT-19 Two Stage 240/480/575V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Transformer, Control Heating Demand, Thermostat DIAGRAM 4 - ELECTRIC POST-HEAT EVT-36 Two Stage 480/575V EVT-46 thru EVT-62 Two Stage 240/480/575V Legend Automatic, Limit (reset Thermal cut-out)
- Page 53 EVT-36 thru EVT-62 Two Stage 240V EVT-74 thru EVT-12 Two Stage 480/575V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Transformer, Control Heating Demand, Thermostat DIAGRAM 6 - ELECTRIC POST-HEAT EVT-74 thru EVT-12 Two Stage 240V Legend...
- Page 54 EVT-62 Three Stage 240V EVT-88 thru EVT-12 Three Stage 480/575V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Transformer, Control Time Delay Heating Demand, Thermostat DIAGRAM 8 - ELECTRIC POST-HEAT EVT-62 Three Stage 480V Legend...
- Page 55 EVT-62 Three Stage 575V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Transformer, Control Time Delay Heating Demand, Thermostat DIAGRAM 10 - ELECTRIC POST-HEAT EVT-88 thru EVT-12 Three Stage 240V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control...
- Page 56 Legend EVT-12 Four Stage 480/575V Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Transformer, Control Time Delay Heating Demand, Thermostat DIAGRAM 12 - ELECTRIC POST-HEAT Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup...
- Page 57 DIAGRAM 14 - 2-STAGE GAS POST-HEAT DIAGRAM 15 - 5:1 MODULATION GAS POST-HEAT REVT-05ERV...
- Page 58 DIAGRAM 16 - 10:1 MODULATION GAS POST-HEAT EVT-09 thru EVT-12 Single Stage 240/480/575V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Heating Demand, Controller Transformer, Control DIAGRAM 17 - ELECTRIC PRE-HEAT REVT-05ERV...
- Page 59 EVT-09 thru EVT-62 Two Stage 240/480/575V EVT-74 thru EVT-12 Two Stage 480/575V Legend Automatic, Limit (reset Thermal cut-out) Contactor, Control Contactor, Backup DPS Differential Pressure Switch Fuse Ground Heating Element Manual, Limit (reset Thermal cut-out) Heating Demand, Controller Transformer, Control Time Delay DIAGRAM 18 - ELECTRIC PRE-HEAT EVT-74 thru EVT-12 Two Stage 240V...
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Page 60: Start Up Information Sheet
START UP INFORMATION SHEET VOLTAGE - ERV UNIT Incoming Voltage L1-L2 L1-L3 L2-L3 Running Voltage L1-L2 L 1-L3 L2-L3 Secondary Voltage C (black) to G (green) Volts* C (black) to W (white) Volts* * With thermostat calling. AMPERAGE - UERV MOTORS Intake Motor: Nominal HP Rated Amps Running Amps...
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