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REVISION B
Form No. 3316201.000 11/17
(French 3316202.000_B)
©2017 Dometic Corporation
LaGrange, IN 46761
Roof Top Unit (Quiet Zone Ducted Application)
Description
Blizzard NXT
TM
Model
Air Conditioner
CCC 2 Controls
H541815A
H541816A
LCD SZ Controls
H541915A
H541916A
Heat Pump
CCC 2 Controls
H551816A
LCD SZ Controls
H551916A
This Unit is designed for OEM installation. All initial installations must be approved by Dometic Corporation.
Read these instructions carefully. These
instructions MUST stay with this product.
USA
SERVICE OFFICE
Dometic Corporation
1120 North Main Street
Elkhart, IN 46514
RECORD THIS INFORMATION FOR FUTURE
REFERENCE:
Model Number
Serial Number
ADB Model Number
ADB Serial Number
Date Purchased
Board Built In
Thermostat
Board Built In
3314082.000 CCC 2-Blk
3314082.011 CCC 2-Wht
Board Built In
3313192.000 C/F-Wht
3313192.019 C/F-Blk
Board Built In
3314082.000 CCC 2-Blk
3314082.011 CCC 2-Wht
Board Built In
3313193.000 C/F/HP-Wht
3313193.017 C/F/HP-Blk
Optional Indoor
Temperature
Sensor
3311931.000-20'
3311931.012-40'
3311931.020-60'
N/A
3311931.000-20'
3311931.012-40'
3311931.020-60'
N/A
SERVICE CENTER &
DEALER LOCATIONS
Please Visit:
www.eDometic.com
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Related Manuals for Dometic Blizzard NXT H541815A
Summary of Contents for Dometic Blizzard NXT H541815A
- Page 1 H551916A Board Built In 3313193.000 C/F/HP-Wht 3313193.017 C/F/HP-Blk This Unit is designed for OEM installation. All initial installations must be approved by Dometic Corporation. Read these instructions carefully. These instructions MUST stay with this product. SERVICE CENTER & REVISION B...
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Page 2: Table Of Contents
Read these instructions and highlight the appropriate steps for your particular procedure before starting the installation. This unit can be installed by one person with brief help from additional personnel. Use these instructions to ensure a properly installed, and properly functioning product. Dometic Corporation reserves the right to modify appearances and specifications without notice. TABLE OF CONTENTS INTRODUCTION ..................................2 DOCUMENT SYMBOLS ................................2... -
Page 3: Important Safety Instructions
● Do NOT add any devices or accessories to this product except those specifically authorized in Read and understand these instructions be- writing by Dometic Corporation. fore [installing / using / servicing / performing maintenance on] this product. Incorrect [installation / operation / servicing / maintaining] of this product can lead to seri- ous injury. -
Page 4: Specifications
For wire length over 24 ft., consult the National Electrical Code for proper sizing. ** Dometic Corporation gives GENERAL guidelines for generator requirements. These guidelines come from experiences people have had in actual applications. When sizing the generator, the total power usage of your RV must be considered. -
Page 5: Installation Instructions
INSTALLATION INSTRUCTIONS Choosing Proper Location For Unit b. Maintain structural integrity. Otherwise damage to product and/or RV This unit is specifically designed for installation on the roof could occur. of an RV. When determining your cooling requirements, the The roof must be designed to support 130 following should be considered: pounds when RV is in motion. -
Page 6: Air Distribution Duct Sizing & Design
Ceiling 6. Air Distribution Installation Air Distribution Duct Sizing & Design a. Dometic Corporation recommends the basic The installer of this system must design the air distribution configurations shown in (FIG. 4), (FIG. 5), system for their particular application. Several requirements (FIG. - Page 7 INSTALLATION INSTRUCTIONS FIG. 4 Return Supply Supply Return FIG. 5 Return Return Supply Supply FIG. 6 Return Supply Supply Supply Supply Return...
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Page 8: Wiring Requirements
INSTALLATION INSTRUCTIONS FIG. 7 Return Return Supply Supply Return Return Wiring Requirements 3. Thermostat Communication Cable a. CCC 2 Thermostat 1. R oute a copper, with ground, 120 Vac supply I. Route a 4 conductor communication ca- wire from the time delay fuse or circuit breaker ble from the roof opening to the thermo- box to the roof opening. Use a listed/certified stat mounting location using the shortest... -
Page 9: Choosing Thermostat Location
INSTALLATION INSTRUCTIONS Thermostat, Optional Indoor a. Route an indoor temperature sensor (option- al) from the roof opening to the indoor tem- Temperature Sensor & Thermostat perature sensor location. The 2 pin connec- Communication Cable Installation tor end goes to the roof opening. See indoor temperature sensor installation instructions 1. - Page 10 INSTALLATION INSTRUCTIONS FIG. 10 FIG. 12 Wall CCC 2 Thermostat (Rear View) 4 Conductor Communication Cable Communication Cable 2" Diameter 2. LCD SZ System W ire colors listed for the communication d. Thermostat Installation cable (3 conductor cable) match the wire I.
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Page 11: Placing Unit On Roof
INSTALLATION INSTRUCTIONS (CCC 2 System Only) Configuration f. Inspect all connections to make sure they are tight and not touching any other termi- 1. Electronic Control Configuration nals or wires. Depending on the equipment options installed g. Push the wires back through the base into by the RV manufacturer, the appropriate dip the wall. -
Page 12: 120 Vac Power Supply Connection
INSTALLATION INSTRUCTIONS a. Ext. Stage - Ext. Stage is not used on this 2. ELECTRICAL SHOCK HAZARD. unit. Leave in the "OFF" position. Provide grounding in compliance with all appli- cable electrical codes. Failure to obey this warn- b. Zone selection - Each CCC 2 thermostat can ing could result in death or serious injury. - Page 13 INSTALLATION INSTRUCTIONS 8. Press the cable sheath into the integral strain FIG. 22 Use Tip Of Pliers To Hold Wire In Place relief slot. See (FIG. 25). Trimming of ground While Hand Bending Wire At 90° wire and possibly others will be necessary. Wires must not extend beyond the locators.
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Page 14: Lcd Sz System Low Voltage Wire Connections
INSTALLATION INSTRUCTIONS CCC 2 System Low Voltage Wire 11. Inspect the connector to ensure the wires have been properly engaged into the housing assem- Connections bly contacts. A properly terminated wire is fully seated into its proper slots with no significant ... - Page 15 Shown 2. Remove shroud. 5. Locate mounting holes in base pan. 3. Align four (4) Dometic cubes with base pan as 6. Pre-drill the mounting holes in roof with 15/64" shown. See (FIG. 30). bit with a drill gun using a depth gauge.
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Page 16: Lcd Sz System Only) System Checkout
INSTALLATION INSTRUCTIONS (CCC 2 System Only) Furnace/Aqua 9. Remove Dometic cubes. Temperature Differential Setting S ave Dometic cubes for future unit instal- lations. This system can be configured to operate using an ON//OFF differential of either 1 degree F or 2 de- 10. Reinstall shroud. gree F. See (FIG. 34). -
Page 17: General Information
For a more permanent solution to high heat gain, acces- sories like Dometic outdoor patio and window awnings will reduce heat gain by removing the direct sun. They also add a nice area to enjoy company during the cool of the evening. -
Page 18: Wiring Diagrams
WIRING DIAGRAMS Simple RV Wiring Diagram FIG. 35 12 VDC INPUT 2 WIRES (OPTIONAL) 12 VDC INPUT 2 WIRES... -
Page 19: Unit Wiring Diagrams
WIRING DIAGRAMS Unit Wiring Diagrams 3. H551816A Wiring Diagram 1. H541815A & H541816A Wiring Diagram FIG. 38 FIELD WIRING 3312453.032 PASSED FACTORY WIRING FIG. 36 GRN/YEL DIELECTRIC MOTOR FIELD WIRING 3312441.045 PASSED FACTORY WIRING GRN/YEL DIELECTRIC RELAY MOTOR GRN/YEL 115 VAC GRN/YEL RELAY RELAY...
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