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SZI Series
Single Zone ~16SEER High-Wall
Ductless Inverter Split Systems
Installation, Operation &
Manintenance Manual
Air Handler (Indoor) Models: ZWHA/ZWHB
Condenser (Outdoor) Models: ZHA/ZHB
ECR International, Inc.
2201 Dwyer Avenue • Utica, New York 13501
PN 240009907, Rev C [01/13/2014]
An ISO 9001-2008 Certified Company
Phone: 800.325.5279 • Web: enviromaster.com
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Summary of Contents for EMI enviroair szi ZWHA
- Page 1 Presents SZI Series Single Zone ~16SEER High-Wall Ductless Inverter Split Systems Installation, Operation & Manintenance Manual Air Handler (Indoor) Models: ZWHA/ZWHB Condenser (Outdoor) Models: ZHA/ZHB ECR International, Inc. 2201 Dwyer Avenue • Utica, New York 13501 PN 240009907, Rev C [01/13/2014] An ISO 9001-2008 Certified Company Phone: 800.325.5279 •...
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Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS Warning ............................2 Caution ............................3 INSTALLATION INSTRUCTIONS Selecting installation place.......................4 Accessories .............................5 Indoor unit installation........................6 Outdoor unit installation ........................8 REFRIGERANT PIPE CONNECTION Refrigerant pipe connection ......................9 ELECTRICAL WORK Electrical work ..........................10 AIR PURGING Air purging with vacuum pump ......................13 Safety and leakage check ......................13 TEST RUNNING Test running ..........................15... - Page 3 Read This Manual Inside you will find many helpful hints on how to install and test the air conditioner properly. CAUTION Contact an authorised service technician for repair or maintenance of this unit. Contact an authorised installer for installation of this unit. This appliance is not intended for use by persons(including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
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Page 4: Safety Precautions
SAFETY PRECAUTIONS Read the follow SAFETY PRECAUTIONS carefully before installation. Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model to be installed. Incorrect installation due to ignoring of the instruction will cause harm or damage. The seriousness is classified by the following indications. -
Page 5: Installation Instructions
INSTALLATION INSTRUCTIONS Selecting installation place Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance. Read completely, then follow step by step. Indoor unit Do not expose the indoor unit to heat or steam. Select a place where there are no obstacles in front or around the unit. -
Page 6: Accessories
INSTALLATION INSTRUCTIONS Accessories Number Name of Accessories Q ty Installation Plate Clip Anchor (depending on models) Self-tapping Screw A ST3.9X25 (depending on models) Seal(For cooling & heating modles only) Drain Joint(For cooling & heating modles only) 6.35 Connecting Liquid side Parts you must purchase. -
Page 7: Indoor Unit Installation
INSTALLATION INSTRUCTIONS Indoor unit installation Correct orientation of Installation Plate 1. Fit the Installation Plate 1. Fit the installation plate horizontally on structural parts of the wall with spaces around the installation plate. 2. If the wall is made of brick, concrete or the like, drill eight (8) 5mm diameter Fig.4 holes in the wall.Insert Clip anchor for... - Page 8 INSTALLATION INSTRUCTIONS 3. Connective Pipe and Drainage Installation Drainage 1. Run the drain hose sloping downward. Do not install the drain hose as Do not put the end of illustrated in Fig.7. Do not block water flow by a rise. drain hose into water.
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Page 9: Outdoor Unit Installation
INSTALLATION INSTRUCTIONS 5. Piping and wrapping Bundle the tubing, connecting cable, and drain hose with tape securely, evenly as shown in Indoor unit Ponding box Fig.12 Because the condensed water from rear of the Connective indoor unit is gathered in ponding box and is Pipe room cable piped out of room. -
Page 10: Refrigerant Pipe Connection
REFRIGERANT PIPE CONNECTION Settlement of outdoor unit Anchor the outdoor unit with a bolt and Air inlet 10 or 8 tightly and horizontally on a concrete or rigid mo unt. Mounting dimensions Air inlet Outdoor unit dimensio n mm(WxH xD) A(mm) B(mm) 780x540x250... -
Page 11: Electrical Work
ELECTRICAL WORK C: Putting nut on Flare nut Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal.(not possible to put them on after flaring work) Copper tube D: Flaring work Firmly hold copper pipe in a die in the dimension shown in the table below. - Page 12 ELECTRICAL WORK Minimum norminal cross-sectional area of conductors: Rated current Nominal cross-sectional area of appliance (mm ) >3 and <6 0.75 >6 and <10 >10 and <16 >16 and <25 NOTE: The cable size and the current of the fuse or switch are determined by the maximum current indicated on the nameplate which located on the side panel of the unit.
- Page 13 ELECTRICAL WORK Power supply Warning cord Be sure to comply with local codes while running the wire from the indoor unit to the outdoor unit. Power supply Every wire must be connected firmly. 208-230V~60Hz No wire should be allowed to touch refrigerant tubing, the compressor Special branch circuit breaker or any moving parts.
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Page 14: Air Purging
AIR PURGING CAUTION CAUTION CAUTION CAUTION After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover. - Page 15 AIR PURGING When relocate the unit to another place, perform evacuation using vacuum pump. Refrigerant Indoor Make sure the refrigerant added into the air Outdoor unit unit conditioner is liquid form in any case. Gas side (Not applicable to the units adopt freon R22 ) Liquid side Caution in handling the packed valve Packed valve...
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Page 16: Test Running
TEST RUNNING Safety and leakage check Electrical safety check Perform the electric safe check after completing installation: 1. Grounding work After finishing grounding work, measure the grounding resistance by visual detection and grounding resistance tester. Make sure the grounding resistance is less than 4 . 2. -
Page 17: Room Air Conditioner
Before using your air conditioner, please read Before using your air conditioner, please read Before using your air conditioner, please read Before using your air conditioner, please read Before using your air conditioner, please read Before using your air conditioner, please read Before using your air conditioner, please read Before using your air conditioner, please read Before using your air conditioner, please read... -
Page 18: Sociable Remark
SOCIABLE REMARK CAUTION Contact an authorised service technician for repair or maintenance of this unit. Contact the authinstaller for installation of this unit. This appliance is not intended for use by persons(including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. -
Page 19: Safety Precautions
SAFETY PRECAUTIONS To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring of instructions may cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. -
Page 20: Caution
SAFETY PRECAUTIONS CAUTION Do not clean the air Ventilate the room well When the air filter is to be conditioner with water. when used together removed, do not touch the with a stove, etc. metal parts of the unit. Water may enter the unit and An oxygen shortage It may cause an injury. -
Page 21: Operating Instructions Parts Names
OPERATING INSTRUCTIONS Parts names Indoor unit NOTE: The indoor unit you purchased would like one of the following. There is a slightly difference on front panel and display window, but the features are the same. Indoor unit 1. Front panel 2. -
Page 22: Special Functions
OPERATING INSTRUCTIONS Indicator Lights on Display panel Auto indicator: NOTE:The display panel of the indoor This indicator illuminates when the air unit you purchased may be look like conditioner is in AUTO operation. one of the following: Timer indicator: This indicator illuminates when TIMER is set ON/OFF. -
Page 23: Operating Temperature
OPERATING INSTRUCTIONS NOTE: This manual does not include Remote Controller Operations, see the <<Remote Controller Instruction>> packed with the unit for details. Operating temperature Mode Heating operation Temperature Room temperature <30 C(86 F) -15 C~30 C Outdoor temperature (5 F~86 F) CAUTION: 1. -
Page 24: Airflow Direction Control
OPERATING INSTRUCTIONS Airflow direction control Adjust the air flow direction properly otherwise, it might cause discomfort or cause uneven room temperatures. Adjust the horizontal louver using the remote controller. Adjust the vertical louver manually. To set the vertical air flow(Up--Down) direction Range Perform this function while the unit is in operation. -
Page 25: How The Air Conditioner Works
OPERATING INSTRUCTIONS How the air conditioner works AUTO operation When you set the air conditioner in AUTO mode, it will SLEEP operation automatically select cooling, heating(cooling/heating 7 hours timer off models only), or fan only operation depending on what temperature you have selected and the room temperature. -
Page 26: Care And Maintenance
CARE AND MAINTENANCE Care and maintenance Cleaning the Grille, Case and Remote Controller Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. NOTE: Supply power must be disconnectd before cleaning the indoor unit. - Page 27 CARE AND MAINTENANCE 4. Remove the Air Freshening Filter from its support frame (on some models). (The optional filter include :Plasma Dust Collector/ Silver Ion filter /Bio filter /Vitamin C filter/3M air purifier filter, etc. The removing and installation methods are slightly different, see the pictures marked on the left.
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Page 28: Operation Tips
OPERATION TIPS The following events may occur during normal operation. 1. Protection of the air conditioner. Compressor protection The compressor can't restart for 3 minutes after it stops. Anti-cold air (Cooling and heating models only) The unit is designed not to blow cold air on HEAT mode, when the indoor heat exchanger is in one of the following three situations and the set temperature has not been reached. - Page 29 OPERATION TIPS 7. Dripping water may generate on the surface of the indoor unit when cooling in a high relatively humidity (relative humidity higher than 80%). Adjust the horizontal louver to the maximum air outlet position and select HIGH fan speed. 8.
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Page 30: Troubleshooting Tips
TROUBLESHOOTING TIPS Troubleshooting Tips If one of the following faults occurs, stop the air conditioner immediately, disconnect the power and then connect it in again. If the problem still exists, disconnect the power and contact the nearest customer service center. OPERATION/RUN indicator or other indicators continue flashing.
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