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CZ & HH OUTDOOR UNITS
INSTALLATION & SERVICE MANUAL
All safety information must be followed as provided.
Important! Refer to page 10 in regards to refrigerant charge
This manual is to be used by qualified, professionally trained HVAC technicians only.
DewAir does not assume any responsibility for property damage or personal injury due to improper
service procedures or services performed by an unqualified person.
It is the owner's and installer's responsibility to read and comply with all safety warnings, information and
instructions. Failure to heed safety information increases the risk of personal injury, property damage,
and/or product damage.
Copyright © 2019 DewAir Corporation
RH-CUBE 18
1
RH-CUBE 18 CZ uses condenser PN GSX14018
RH-CUBE 18 HH uses condenser PN GSX14024
RHC18O-IM v2.11
Sep 4, 2019
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Table of Contents
Summary of Contents for DewAir RH-CUBE 18 CZ
- Page 1 This manual is to be used by qualified, professionally trained HVAC technicians only. DewAir does not assume any responsibility for property damage or personal injury due to improper service procedures or services performed by an unqualified person. ...
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Page 2: Safety Instructions
THIS SYMBOL MEANS IMPORTANT INSTRUCTIONS. FAILURE TO HEED THEM CAN RESULT IN SERIOUS INJURY OR DEATH FROM ELECTRIC SHOCK. CAUTION CAUTION THIS SYMBOL MEANS IMPORTANT INSTRUCTIONS. FAILURE TO HEED THEM CAN RESULT IN INJURY OR MATERIAL PROPERTY DAMAGE Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 3: Table Of Contents
..........................7 YSTEM VACUATION LINE SET INSTALLATION.........................8 ...........................8 RAZING THE ELECTRICAL CONNECTIONS........................9 ........................9 CURRENT ROTECTION .......................10 OLTAGE ONNECTIONS ........................10 OLTAGE ONNECTIONS SYSTEM START UP.............................10 CRITICAL REFRIGERANT CHARGE......................11 OUTDOOR UNIT SPECIFICATIONS......................12 NOTES...............................13 Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 4: Warnings
O PREVENT THE RISK OF PROPERTY DAMAGE PERSONAL INJURY OR DEATH DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 5: Shipping Inspection
To reduce the prior to determining final clearances. possibility of sound transmission, the foundation slab should not be in contact with or be an integral part of the building Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 6: Safe Refrigerant Handling
2. Enclose all underground portions of the refrigerant Suct Liq Suct Liq Suct Liq lines in waterproof material (conduit or pipe) sealing the ends where tubing enters/exits the enclosure. 5/8 1/4 Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 7: Refrigerant Line Connections
NOTE: Holding charge must be removed before NOTE: Before brazing, verify indoor piston size by brazing. checking the piston kit chart packaged with indoor unit. 1. Open service valves before attaching vacuum pump. Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 8: Line Set Installation
BRAZING MINIMUM SILVER ALLOY FOR • Do not overheat the lines connected to the COPPER BRASS COPPER STEEL dehumidifier or the condensing unit when brazing. BRAZING Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 9: Electrical Connections
The following over-current protection devices are approved for use. • Time delay fuses • HACR type circuit breakers These devices have sufficient time delay to permit the motor compressor to start and accelerate its load. Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 10: High Voltage Connections
DAMAGE leaks. Make sure cap is clean and apply refrigerant oil to threads and sealing surface on inside of cap. Tighten cap finger-tight and then tighten additional 1/6 Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 11: Critical Refrigerant Charge
REFRIGERANT SHOULD BE ADDED AT OUNCES 2. 5/8" valve to 5 - 20 in-Ibs PER FOOT OF LIQUID LINE 3. 3/4" valve to 5 - 20 in-Ibs 4.7/8" valve to 5 - 20 in-Ibs Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 12: Outdoor Unit Specifications
Wire size should be determined in accordance with National Electrical Codes; extensive wire runs will require larger wire sizes. Maximum Overcurrent Protection Device: MUSTuse Time Delay Fuses or HACR type Circuit Breaker of the same size as noted. Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019... -
Page 13: Notes
NOTES _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ _________________________________________________________________________________________ Copyright © 2019 DewAir Corporation RHC18O-IM v2.11 Sep 4, 2019...
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