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An ISO 9001-2008 Certified Company
Variable Speed Ductless Split System
Air Handler
Straight Cool / Heat Pump Nominal Capacities
UNHV09 UNHV12 UNHV18 UNHV24 UNHV30
9,000
12,000
18,000
2.6
3.5
5.3
8,800
10,000
18,000
2.5
2.6
5.0
Installation, Operation and
Maintenance Manual
ECR International, Inc.
2201 Dwyer Avenue,
Utica NY 13501
web site: www.ecrinternational.com
UNHV
UNHV36
24,000
29,800
33,400
7.0
8.8
21,000
26,000
26,400
5.6
7.6
P/N# 240009098, Rev. D [08/06/2013]
Units
Btuh
COOL
9.8
kW
Btuh
HEAT
7.7
kW
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Related Manuals for ECR International UNHV30
Summary of Contents for ECR International UNHV30
- Page 1 UNHV Variable Speed Ductless Split System Air Handler Straight Cool / Heat Pump Nominal Capacities UNHV09 UNHV12 UNHV18 UNHV24 UNHV30 UNHV36 Units 9,000 12,000 18,000 24,000 29,800 33,400 Btuh COOL 8,800 10,000 18,000 21,000 26,000 26,400 Btuh HEAT Installation, Operation and Maintenance Manual ECR International, Inc.
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Page 2: Table Of Contents
TAble Of CONTeNTS Receiving Information ........................3 Important Safety Information ......................4 Dimensional/Physical Data ......................5 General Product Information ......................6 Unit Mounting ..........................8 Ceiling Mounted .......................... 8 Wall Mounted ..........................8 Unit Mounting ..........................9 Condensate Piping ........................10 Refrigerant Piping ........................11 Refrigerant Processing .........................13 Electrical Wiring .........................15... -
Page 3: Receiving Information
ReCeIVINg INfORMATION Shipping damage MUST be reported to the carrier IMMEDIATELY. Examine exterior. Remove cover and examine compressor and piping for signs of damage. general Information Installation shall be completed by qualified agency. Retain this manual and warranty for future reference. Installer review this manual to verify unit has been installed correctly. -
Page 4: Important Safety Information
IMpoRTAnT SAfETY InfoRMATIon Safety Information All field wiring shall conform to requirements of authority having jurisdiction or in absence of such requirements: • Installation by qualified personnel. • United States - National Electrical Code, ANSI/NFPA 70 • Turn off electrical supply before servicing unit. •... -
Page 5: Dimensional/Physical Data
UNHv18/24 26” (660) 11” (279) 51½” (1308) 5½” (140) 45” (1141) 2½”(64) 50½” (1283) ”(487) ” (265) ⅜ UNHv30/36 27½” (699) ” (314) 62” (1575) ” (141) 55 ” (1408) 20 ”(526) 2½”(64) ” (300) 61½” (1562) Optional condensate pump floor Opening, ⅞"... -
Page 6: General Product Information
geNeRAl PRODUCT INfORMATION Product Description • Non-volatile back-up memory maintains control settings for indefinite period during power outage. When power is restored equipment resumes operation after three- • UNHv is available as (DX) direct expansion straight cool minute compressor time delay. or heat pump. - Page 7 geNeRAl PRODUCT INfORMATION Installation Considerations NOTICe • Determine best location for mounting unit for room air If excessive noise or vibration from unit mounted to circulation. masonry block wall, verify unit is plumb and level. If • Locate outdoor and indoor units as close together as noise or vibration persists, contact distributor.
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Page 8: Unit Mounting
UNIT MOUNTINg Unit Mounting Instructions NOTICe Optimal unit location: • Locate unit in area with unrestricted air flow to the Do not install unit in location where curtains or space. drapes obstruct supply air grille. This may cause air • Unit may be recessed into wall or ceiling by no more to recirculate without cooling the room, and may than 5½”... -
Page 9: Unit Mounting
UNIT MOUNTINg Unit Mounting Instructions figure 4 Ceiling Mounting WARNINg Electrical shock hazard. Replace all panels after installation or servicing. Panels must remain on unit at all time while powered and in operation. Failure to do so could result in death or serious injury. Ceiling Mounting Threaded rods may be inserted through mounting holes to suspend unit from ceiling supports. -
Page 10: Condensate Piping
CONDeNSATe PIPINg UNHv is supplied with two ½" I.D. flexible PvC hoses for figure 6 Condensate Piping connection to copper or plastic condensate drain pipe work. • Each drain line is labeled and plugged at the factory. • Unplug appropriate line and connect to condensate drain. -
Page 11: Refrigerant Piping
RefRIgeRANT PIPINg Piping Preparation figure 7 Refrigerant Connections • Avoid piping on wet and rainy days. • Use only clean, refrigeration-grade copper tubing. Suction line Liquid line • Use tubing benders to guard against kinking. • verify no burrs remain on fittings. •... - Page 12 RefRIgeRANT PIPINg line Sizing figure 8 Clean ends of tubing Size lines per Table 13, Page 40. Match suction line size with condenser service valve connection. • When matching UNHv18 or 24 with 18,000 or 24,000-Btuh condenser, use 5/8" suction line, with reducer installed at indoor connection.
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Page 13: Refrigerant Processing
RefRIgeRANT PROCeSSINg Refrigerant Processing Attach manifold set, vacuum pump, & Micron Gauge. See Figure 10. Evacuate line to 500 microns or less to insure all moisture has been removed and there are no leaks. See Figure 11. Evacuate B. Pressurize with 100psi N2 or Nitrogen C. - Page 14 RefRIgeRANT PROCeSSINg Use following example to find charge adjustment and system charge for any air handles and tubing length. Line Adjustment = (Line Charge/FT) x Line Length System Total = Factory Charge + Line Adjustment Round to nearest ounce and allow for gauges and hoses. Table 5 - S1CV / S1HV R410A Refrigerant charge Table Condenser Cassette...
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Page 15: Electrical Wiring
eleCTRICAl WIRINg Site Preparation for Wiring figure 14 electrical Connections Electrical wiring must be in accordance with all electrical codes. In absence of such requirements to the National Electrical Code (NEC). WARNINg Electrical shock hazard. Turn OFF electrical power supply before making electrical connections. Failure to do so could result in death or serious injury. - Page 16 eleCTRICAl WIRINg High Voltage Electrical Wiring figure 15 Remove control Box cover Screws Remove control box cover screws to access high To Access High Voltage Wiring voltage wiring compartment. See Figure 15 and Compartment Figure 16 Remove control box Refer to wiring diagram to connect power wire to Black cover screws L1 and Red L2 at power connector location.
- Page 17 eleCTRICAl WIRINg Units With or Without Heat figure 18 Unit-Mounted Controls — Cooling Only All low voltage interconnect wiring must be at least 18 AWG. Cooling Only Connection • Cooling only units utilize four (4) low voltage interconnecting wires between the indoor and outdoor units.
- Page 18 eleCTRICAl WIRINg Wired Wall Controller Heat Pump Applications • Heat pump operation requires connection of 2 Rv termi- • Low voltage interconnect wiring must be at least nals between outdoor unit to indoor unit. See Figure 22, 18 AWG. Page 19. Reversing valve is energized in cooling mode •...
- Page 19 eleCTRICAl WIRINg figure 21 Wired Wall controller configuration — cooling only figure 22 Wired Wall controller configuration — Heat pump...
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Page 20: Cabinet Re-Assembly
cABInET RE-ASSEMBLY Re-Assemble Cabinet figure 23 Replace (Tighten) Top, Bottom And center cabinet Screws verify system is leak-free and all piping has been properly installed before reassembling cabinet. Loosen top screws See Figure 23. Slide cabinet slotted holes over upper and lower cabinet screws. -
Page 21: Condenser Operation
CONDeNSeR OPeRATION S1CV / S1HV IOM’s Sequence of Operation S1CV / S1HV Condenser Operation • EMI Series condensers will only operate with EMI Series • When indoor control is placed in Cooling Mode, with air handlers. set point temperature below room temperature, compressor, outdoor fan, and indoor blower energize. - Page 22 CONDeNSeR OPeRATION speeds to reduce rate of indoor temperature change and avoid passing set point. As temperature of indoor space moves farther from set point compressor, indoor, and outdoor motors adjust to increase rate of indoor temperature change and remain close to set point. System tries to remain running, minimizing the number of start / stop cycles.
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Page 23: Initial Start-Up
INITIAl START-UP Unit Operation is dependent on room temperature. It may Controller Operation be necessary to warm room before testing unit’s cooling • Controller operates unit in cooling, heating (when abilities. equipped) dry or auto changeover mode. Before Starting The Unit •... -
Page 24: Unhv Controller
UNHV CONTROlleR figure 25 Hand Held Remote Operation Press to turn unit on or off. Press and hold for 2 seconds to transmit all settings to unit-mounted POWER controller Press to toggle through operating modes — MODE Cool, Heat, Auto changeover, Dry or Fan modes. Normal operation —... -
Page 25: Wired Wall Controller
WIReD WAll CONTROlleR figure 26 Wired Wall Control Wired Wall Control Operation Wired Controller button Selections POWER Press to turn unit on or off. MODe Press to toggle through operating modes — Cool, Dry, Fan, Heat or Auto Changeover Normal operation — hold for 3 seconds to enter Set Time mode; hold again for 3 seconds to exit. In ClOCK programming mode —... - Page 26 WIReD WAll CONTROlleR Table 6 7-Day Programming Options for CAHV Item Setting values Overview To access: Press and hold PROGRAM and CLOCK buttons simultaneously for 3 seconds; use arrow keys to select position; save selection and exit by repeating the button press. Quick copy —...
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Page 27: Setting The Controller
SeTTINg THe CONTROlleR Table 7 configuration Mode for UnHV Air Handlers Possible Dis- factory Item Value overview play Settings (flashing) To access: Press MODE and PROG together for 5 seconds, repeat to exit; automatically exits after 20 seconds idle Fahrenheit Select temperature scale for display and operating Temperature Setting scale 01 F-C... - Page 28 SeTTINg THe CONTROlleR Table 8 programming Schedule (When Using 7-Day programming) To copy the settings from any day to the entire week: 1) Select the day to be copied. 2) Simultaneously press the “Fan” and “Prog” buttons for three sec- onds.
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Page 29: Hand Held Controller Operation
HAND HelD CONTROlleR OPeRATION power When power is first applied to control or after power outage there is three (3) minute delay before compressor or Pressing POWER button momentarily switches unit either electric heat will energize. Protects unit from short cycling on or off. - Page 30 HAND HelD CONTROlleR OPeRATION Cooling Mode optional Heat pump Without Electric Heat (Heat pump Unit outdoors) For cooling operation, turn unit on via POWER button. EMI heat pumps are intended to operate with indoor air Select Cooling mode via MODE button. handler, with optional electric heat.
- Page 31 HAND HelD CONTROlleR OPeRATION When room temperature has been satisfied for at least • Fan operates continuously at low speed while in Dry sixty (60) seconds and two (2) minute minimum on- mode. time has elapsed, compressor switches off. • In order to prevent short cycling, there is 2 minute See Fan Operation see pg.
- Page 32 HAND HelD CONTROlleR OPeRATION 7-Day Programming Mode The setpoint changes to programmed setting at se- 7-day Programming mode is used to store settings for Pre- lected time. Programmed Run mode. To use Pre-Programmed Run mode enter program settings When unit is in either Off or On mode, 7-Day through 7-Day Programming mode.
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Page 33: Wired Wall Control Operation
WIReD WAll CONTROl OPeRATION When power is first applied to control or after power outage Place set-point temperature below room temperature. there is 3 minute delay before compressor or electric heat • Electric heater will switch off and indoor fan remains energize. -
Page 34: Controller Features
CONTROlleR feATUReS Short cycle protection (AScT) Electronic control incorporates anti-short-cycle timer (ASCT) feature designed to protect compressor from short cycling. ASCT is activated immediately following off cycle of outdoor unit. Once room temperature is satisfied and outdoor unit switches Off, ASCT will not allow outdoor unit to restart until 3 minute time period has elapsed. -
Page 35: Controller Fault Conditions
CONTROlleR fAUlT CONDITIONS Table 9 Trouble Codes Alarm failure leD- Type/ Number fault Condition Description location flashes Dirty filter Clean filter,press warning/clear filter button Condensate, check for drain blockage or Drain pan condensate fault pump failure EPROM failure Check indoor EPROM Indoors Failure for ambient temperature detection Check ambient temperature sensor Failure for coil temperature detection... -
Page 36: Maintenance
MAINTeNANCe WARNINg figure 27 Remove The front Grille Electrical shock hazard. Before removing access Grille screws panels, verify all power is disconnected from the unit. Failure to follow these instructions could result in death or serious injury. Have service performed by a qualified service agency. Annual system check is recommended. -
Page 37: Troubleshooting
TROUbleSHOOTINg Low Voltage controls — cooling-only Unit WARNINg Cooling-only units utilize 4 low volt interconnecting wires Electrical shock hazard. Before removing access between indoor unit, and outdoor. panels or control covers, verify all power is disconnect all high volt power supplies to both the Air handlers with unit-mounted controls require contacts wired to same name indoors and outdoors, COM1, COM2, indoor unit and outdoor unit. - Page 38 TROUbleSHOOTINg electric Heat Applications See “Electrical Wiring” on page 15 for interconnect wiring diagrams, for optional wired wall control. Units with electric heat utilize control relay located on the Checking voltage can be accomplished at either indoor or air handlers control board in the control box. outdoor unit.
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Page 39: Frequently Asked Questions
fREqUEnTLY ASkED qUESTIonS Q: The condenser will not start although indoor unit appears normal. What should I do? a: Check Breaker Q: How long will the fan run? a: While the unit is in cooling or heating and auto fan mode is selected, Fan speed is determined by microproces- sor, speed adjustment is made according to room and set- point temperatures. -
Page 40: Specifications And Dimensions
41½ (1054) 95 (43) UNHV12 UNHV18 26 (660) 11 (279) 51½ (1308) 116 (53) UNHV24 UNHV30 27½ (699) 12⅜ (314) 62 (1575) 153 (69) UNHV36 Table 11 Discharge Air Speed And flow @ 230 Vac / Sound Values High speed... -
Page 41: Unhv System Options
S1Cv8000 UNHv18 18,000 17.0 0.73 13.0 R410A S1Cv4000 UNHv24 24,000 17.0 0.67 11.0 R410A S1Cv3000 UNHv30 29,800 14.50 0.71 10.3 R410A S1Cv6000 UNHv36 33,400 14.0 0.70 R410A Table 15 Heat pump System With Universal Units Cooling Heating Condenser Wall Units SeeR HSPf SHR eeR COP Ref. -
Page 42: Test Unit Performance Data Sheet
TeST UNIT PeRfORMANCe DATA SHeeT NOTICe Test Unit Performance Data sheet is provided for use by qualified service professional in event there is concern with unit. For our Technical Service Department to better serve you, please complete. Have this information ready when calling. It is important to include Model Number, Serial Number, and Date of installation. - Page 43 NOTeS...
- Page 44 Phone: 1-800-228-9364 2201 Dwyer Avenue, Fax: 1-800-232-9364 Utica NY 13501...
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