Aqua-Hot 200 Series Installation Manual

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Installation Manual

200

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AHE-250-P01

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Page 1 Installation Manual Series AHE-250-P01...
Page 2: Table Of Contents
Exhaust System ................. 22 Pin-Out Information ..............25 Connecting the 250P to 12V DC Power ........26 Connecting the Aqua-Hot to AC Power ........27 Filling/Purging the Aqua-Hot 250P .......... 28 DANGER signals a situation where immediate risk of serious First Operation ................29 injury or death will result if instructions are not followed.
Page 3: Introduction
The Aqua-Hot’s exhaust is HOT and must be kept away from (574-247-9235). heat sensitive material. • DO NOT connect the 12-volt DC power to the Aqua-Hot if the vehicle requires welding. • At maximum operating temperature, the coolant will be very hot and scalding.
Page 4 These heaters also employ a 12V DC propane burner as the Aqua-Hot’s boiler tank. This ﬂ uid solution must be up to the primary heating source. The burner should be used for operating temperature before the Aqua-Hot will provide interior continuous hot water, and interior heating in cold conditions.
Page 6: System Features
NOTE: This product label is attached to the side of the listed in the Recreational Vehicle Industry Association’s Aqua-Hot, and provides a ready reference to speciﬁ cations, (RVIA) ANSI/NFPA 1192 Handbook for Recreational Vehicle test standards, and important safety notices.
Page 7: Component Cut-Aways
DO NOT remove these panels. Doing so risks irreparable damage 16. Domestic Hot-Water Coil to the Aqua-Hot. Only remove the service panel for service. 17. Interlock Switch 18. Zone Circulation Pump Figure 2 p.
Page 8: Installing The 250P
2. Cut out the required mounting ﬂ ange opening Reference Figure 5. 3. Install the ﬂ ange located on the bottom of the Aqua-Hot into the cutout opening. Reference Figures 7 & 8. 4. Take the angle brackets and included ¼-20 bolts and washers.
Page 9 12.625” 2” 12.57” Figure 5 NOTE: The mounting ﬂ ange of the Aqua-Hot is not centered on the body of the heater. Reference Figure 5 for the correct dimensions to construct the surface on which the Aqua-Hot will be mounted.
Page 10 Support and Clearance Installing the 250-P01 Seat the Aqua-Hot in the Flange cutout Coach Bay Floor ¼-20 Bolt and Lock Washer Figure 7 Mounting Brackets on both sides, front, and rear NOTE: Angle mounting bracket must be ﬂ ush to the underside of the coach ﬂ...
Page 11: Installation Of The Expansion Bottle
Upper Fitting The ﬂ uid expansion bottle is integral to the operation of the Aqua-Hot. It provides an area for hot, expanded ﬂ uid to empty Hot Fluid Line into, and also protects the Aqua-Hot from low-ﬂ uid, which could lead to catastrophic damage of the Aqua-Hot.
Page 12: Heat Exchanger Layout
NOTE: For the best performance, the ﬁ rst heat exchanger should be placed where heat loss is the greatest. The ﬁ rst heat exchanger will always output the largest volume of heat as compared to subsequent exchangers. Aqua-Hot Unit Heat Exchanger 2 Living Area Heat Exchanger 3...
Page 13: Installing Heat Exchangers
(reference Figure 24). Figure 13 13.69 in 10.50 in 0.38 in 6.50 in 2.81 in 3.50 in 6.44 in 5.50 in 1.06 in 13.06 in 14.44 in Figure 14 p. 12 ©Aqua-Hot® 250 Propane Installation Manual...
Page 14: Mounting The Heat Exchangers
Refer to Figure 17. 1. Hot Air Outlet Vent 2. Air Ducting Hose 3. Plenum 4. Cozy Heat Exchanger 5. Toe Kick Board Figure 16 Figure 17 ©Aqua-Hot® 250 Propane Series Installation Manual p. 13...
Page 15: Heat Exchanger Locations And Clearances
ﬂ uid pressure to allow the 6th heat exchanger to operate as intended. Aqua-Hot advises against placing a heat exchanger on the slide-out section of any vehicle due to the high probability of damage occurring to the heating loop from moving parts.
Page 16: Wiring The Heat Exchangers
When choosing a zone control for the heat exchangers, the guidelines. If a deviation is required, contact Aqua-Hot Heating following guidelines must be adhered to, or the Aqua-Hot will Systems prior to installing these exchangers for express not function correctly in any mode of operation.
Page 17: Plumbing The Heating Zone
ﬂ ow of the plumbing to and from heat exchangers. arrangement. Placement and quantity may vary depending on the coach. 6. Connect and clamp the inlet line from the heater to the Aqua-Hot highest port on the Heating System last heat exchanger to complete the heating Cozy #1 loop.
Page 18 Wiring Heat Exchangers Heat Exchanger Install Figure 26 NOTE: The AC relay enclosure has been hidden in this view to allow an unobstructed view of the constant tension clamps. Figure 27 ©Aqua-Hot® 250 Propane Series Installation Manual p. 17...
Page 19: Domestic Water System Requirements
The electric element will only provide light duty hot water. • The Aqua-Hot is equipped with a pressure relief valve and a The tempering valve is integrated into the cabinet of the tempering valve in order to provide safe hot water without Aqua-Hot, and is set upon departure from the Aqua-Hot factory.
Page 20: Interior Switch Panel
Coach Control Panel Screen: 4. Move both switches to the OFF position by pressing Newer Aqua-Hot units may have a coach touch-screen them in a downward motion. display instead of the interior switch panel. This section is only for the installation and wiring for the interior switch panel.
Page 21 SWITCH PANEL. JUMPER WIRES ARE ONLY TO BE INSTALLED N-Lock BETWEEN PIN 4 AND PIN 10 ON EACH SWITCH. FAILURE TO ADHERE TO THIS GUIDELINE MAY RESULT IN DAMAGE TO YOUR AQUA-HOT AND/OR COACH. Chassis Ground 2-Pin AC Control Switch Plug...
Page 22: Propane Fuel System
The following section outlines requirements for propane fuel vehicle gas demand/pipe sizing is considered during the layout delivery to the Aqua-Hot unit. Please read and adhere to all of of the fuel system. For the 250P, use an input rating of 70,000 the outlined requirements to ensure best performance of the BTU/hr in calculating fuel pipe “inside diameter”...
Page 23: Exhaust System
Aqua-Hot unit. Exhaust from the Aqua-Hot is very HOT and must be kept away from any heat sensitive materials. Failure to do so may result in a ﬁ re.
Page 24 NOTE: Total exhaust length shall not exceed 30 ft, and shall contain no more than two 90° pipe bends. Exhaust Clamp Figure 35 1.5” NPT Black Pipe Elbow 1.5” NPT Black Pipe Nipple Figure 36 ©Aqua-Hot® 250 Propane Series Installation Manual p. 23...
Page 25 Flange Flange 3” Nipple Exhaust Tip Elbow Exhaust Tip 4” Nipple Elbow Figure 38 Figure 39 NOTE: Exhaust must terminate at least 3ft from any coach openings (doors and windows). p. 24 ©Aqua-Hot® 250 Propane Installation Manual...
Page 26: Pin-Out Information
Introduction to Wiring Pin-Out Information 200 Series Pin-Out Information The following section serves to provide electrical information particularly pertaining to pin-out conﬁ gurations to assist in Installation must be performed by a professional installer correctly wiring the coach-side electrical connections.
Page 27: Connecting The 250P To 12V Dc Power
The red (+) wire must be fused with a 25A fuse to protect the heater from over-current. DO NOT connect 12V DC power to the Aqua-Hot if 2. Crimp the appropriate terminals called out in Table 1 to the vehicle requires welding. Electrical welding the wires.
Page 28: Connecting The Aqua-Hot To Ac Power
Reference Figure 41 A119.2/NFPA 501C Standard on Recreational Vehicles 1993 Edition. 1. Route three 120V AC power source wires to the Aqua-Hot • The boiler must be connected to a 120V AC supply heater. permanently and be protected with a 20A breaker (minimum).
Page 29: Filling/Purging The Aqua-Hot 250P
5. Attach the ﬂ uid expansion hose and the expansion bottle to the expansion tank port located on top of the Aqua-Hot. Before the ﬁ rst activation of the Aqua-Hot, ﬁ ll the unit with Secure the hose as shown on Page 10.
Page 30: First Operation
Activation Instructions (Burner) 1. Make sure there are no blockages or debris to the exhaust The ﬁ rst start-up of the Aqua-Hot may not light up perfectly. outlet or combustion air inlet. This is normal. On the propane systems, fuel lines may not have been bled of air prior to the ﬁ...
Page 31: Winterizing
“GRAS” antifreeze) rated for winterization is used when system overview. winterizing this unit. The warranty does not cover freeze damage. NOTE: The Aqua-Hot can continue to be used for interior heat De-Winterization: once the domestic hot water system has been winterized.
Page 32: Appendix A: System Schematics
Filling the Aqua-Hot System Schematic ©Aqua-Hot® 250 Propane Series Installation Manual p. 31...
Page 33: Appendix B: Measuring Antifreeze
Refractometer Sight Glass Application of Propylene Glycol Upper Blue Field Poor Poor Good Boundary Line Adjust to 32°F Lower White Field p. 32 ©Aqua-Hot® 250 Propane Installation Manual...
Page 34 “boiler” type antifreeze in the concentrated propylene glycol antifreeze with water; suppliers Aqua-Hot. Propylene glycol is a safer alternative to the more of premixed antifreeze are responsible for the use of high- toxic ethylene glycol antifreeze; however, as mandated by...
Page 35 Generally Recognized As Safe (“GRAS”) by the FDA could Therefore, as water is an excellent heat conductor, it is result in serious bodily harm to damage to the Aqua-Hot added to the mixture. Propylene glycol antifreeze solution, system.
Page 36: Appendix C: Parts & Accessories
Parts & Accessories Appendix AHE-250-P01 250 Series Propane w/ Electric Element (1kW @ 120V AC) ELE-000-508 ELE-400-900 Boost Pump Harness Panel, Switch, 2-Position ASM ELX-700-007 EXE-103-0EX Room Thermostat, Positive Off Heat Exchanger, Cozy III ©Aqua-Hot® 250 Propane Series Installation Manual p. 35...
Page 37 Grille, Long, 3.5” x 21.5”, Black EXX-013-100 EXX-013-105 Nozzle, 4” Round w/ 2-½” Connector, Black Nozzle, Round 4” w/o Connector, Black EXX-950-411 EXX-006-501 Grille, 10” x 2” Cozy Grille, Medium, 3.5” x 15”, Black p. 36 ©Aqua-Hot® 250 Propane Installation Manual...
Page 38 Overﬂ ow Bottle Kit (Tank, Hose, Clamp, Tie, Labels). PLX-000-200 PLX-000-820 Tube, ⅝” Safety Stripe, 12ft. Fitting, Elbow, 90°, ¾”, Barb, Black Nylon PLX-000-835 PLX-100-836 Fitting, Reducer ½” to ⅝” Black Nylon Pump Mounting Bracket ©Aqua-Hot® 250 Propane Series Installation Manual p. 37...
Page 39 Tube, ⅝”, Red O2 Barrier Pex 100 Ft. PLX-200-103 PLX-284-74V Fitting ½” (M) NPT x ¾” Barb Black Nylon Hose, Molded, Elbow 90° PLX-432-000 PLX-664-730 Fitting, Straight, ½” PEX x ½” (M)NPT PSF Fitting, Pipe Nipple, Exhaust, 1-½” x 4” p. 38 ©Aqua-Hot® 250 Propane Installation Manual...
Page 40 Fitting, Straight, ½” PEX x ½” (F) NPT PLX-803-ELB PLX-803-FSE Elbow Fitting, 90°, ½” PEX x ½” PSF Elbow Fitting, 90°, ½” PEX Fitting PLX-CTB-270 PLX-A51-106 Clamp, Hose, Constant Tension, 0.75” Bend Support, ⅝” ©Aqua-Hot® 250 Propane Series Installation Manual p. 39...
Page 41 Parts & Accessories Appendix PLX-A65-200 PLX-A65-300 Fitting, Brass Barb, ¾” x ½” (M) NPT Fitting, Brass Barb, 90°, ¾” x ½” (M) NPT PLX-T44-006 SME-102-000 Fitting, Insert Modiﬁ ed Bras Cozy Plenum Assembly p. 40 ©Aqua-Hot® 250 Propane Installation Manual...
Page 42 Parts & Accessories Appendix SME-400-015 MSE-200-EXH Exhaust Kit Tip, Exhaust End MSX-300-300 MSX-300-270 Boiler Antifreeze, 1-gallon, Green Boiler Antifreeze, 1-gallon, Pink ©Aqua-Hot® 250 Propane Series Installation Manual p. 41...
Page 43: Warranty
Thus, problems due to improper speciﬁ cations, improper installations, improper use, the use of accessory parts or parts not authorized by Aqua-Hot Heating Systems Inc., repair by unauthorized persons, and damage or abuse of the heater are specially excluded from warranty coverage.
Page 44 Installation Manual SERIES Aqua-Hot Heating Systems, LLC 7501 Miller Drive, Frederick, CO 80504 Visit us online at www.aquahot.com Call us at 574-AIR-XCEL (574-247-9235) ©2021 Aqua-Hot Heating Systems, LLC. Printed in the USA...

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