User manual CR330 - Dometic Marvair Marine Technical Manuals
Contents
1. PO Box 400 e Cordele GA 31010 Unit B8 e Arena Business Centre e Holyrood Close 156 Seedling Dr e Cordele GA 31015 Poole Dorset BH17 7FL 229 273 3636 e Fax 229 273 5154 44 1202 606405 Email marvair airxcel com www marvair co uk www marvair com Part 01563 10 09 3 Supersedes 10 07 2 Chapter 1 Overview The Marvair CR330 removes the condensate water produced during the cooling cycle of your Marvair reverse cycle air conditioner and discharges the condensate into the air conditioner s outlet water line The condensate is pumped overboard any time the air conditioner s circulation pump is working and sufficient condensate is in the condensate pan of your Marvair unit By operating on the Venturi effect a separate condensate pump is not required A water filter strainer a reducer and a check valve are also provided and must be installed with the CR330 The filter prevents debris from entering the CR330 and obstructing the water flow The check valve allows the condensate to flow in only one direction The flow rate of the pump for the Marvair unit must be at least 1 00 GPM 3 79 LPM If the flow rate is less than this the CR330 may not remove the condensate The seacock or ball valve in the air conditioner s discharge water line must be closed when installing the CR330 Failure to close the seacock or ball valve may result in the flooding or sinking of the boat A check valve supplied MUST be installed in the condensat2. 1 2 MPT fitting NOTE TOTAL LENGTH FROM MARVAIR UNIT TO CR330 MUST NOT EXCEED 10 FEET 3 METERS Figure 1 CR330 Owner s Manual 10 09 Page 4 of 6 Chapter 3 Maintenance of the CR330 Even though the CR330 condensate removal system has no moving parts regular maintenance and inspection of the system is essential for proper operation The most important task is to check the filter strainer and to make sure it is clean and not obstructed Av WARNING Failure to clean the filter strainer may cause the condensate to overflow the condensate drain pan causing damage to or flooding of the boat 1 The condensate pan must be keep clean of mold and debris that could clog the filter strainer Inspect the drain pan regularly to make sure it is clean 2 If the condensate is not being removed from condensate pan and there are no kinks or obstructions in the lines or tubing the filter strainer should be cleaned 3 To clean the strainer a Unscrew the plastic bulb on the strainer b Take out the wire mesh strainer c Spray off the wire mesh with water or using a wire brush gently remover debris form the screen d Reassemble the components 4 Cleaning of the CR330 Should the CR330 become clogged it can be cleaned with pressurized water Alternately a small probe e g a paper clip can be used to remove obstructions from the orifice CR330 Owner s Manual 10 09 Page 5 of 6 Chapter 4 Replacement Parts List
3. PART NUMBER ON NUMBER DRAWING DESCRIPTION 90169 12 CR330 condensate remover 92006 5 Strainer filter with FPT connections 20371 10 1 4 x 1 4 Check valve 90168 4 5 8 Barb x 1 2 FPT coupling 90632 3 Stainless Steel screw type hose clamp for 5 8 tubing 90758 7 Stainless Steel screw type hose clamp for 1 4 tubing 81216 8 11 1 4 ID clear tubing 20327 1 5 8 ID clear tubing 40450 6 1 4 barb x 1 2 MPT adapter 01568 2 Hold down clamp for 5 8 tubing 01567 9 Hold down strap for 1 2 tubing 01569 13 Hold down strap for the CR330 90398 14 5 8 barb x 1 2 MPT fitting CR330 Owner s Manual 10 09 Page 6 of 6
4. 1 12 13 TO MARVAIR 3 CONDENSATE PAN V 4 DLO O S NS Cut a 7 ft 210 cm piece of the tubing Connect one end to the check valve and the other end to the CR330 Secure both connections with 4 stainless steel screw type hose clamps Open the seacock or ball valve Turn the circuit breaker for the air conditioner to the on position If the water pump has a separate breaker turn this breaker on Lower the temperature set point of the air conditioner so that it is below room temperature and the air conditioner begins operation and cool air is being produced With the air conditioner running pour 2 3 cups 1 2 liter of clean water into the condensate drain pan of the air conditioner The condensate water should begin to immediately flow from the drain pan through the clear hose and into the CR330 Check all connections to make sure that they are tight and secure Make sure all lines and tubing are free of kinks DISCHARGE WATER FROM MARVAIR UNIT Dy TO OVERBOARD THRU sie 1 ft 30 5 cm of 5 8 ID clear tubing 8 2 1 2 inch 6 cm of 1 4 clear tubing Hold down clamp for 5 8 tubing 9 1 4 hold down clamp 5 8 stainless steel screw type hose clamp 10 Check valve 1 2 FPT x 5 8 hose barb adapter 11 7 ft 213 cm of 1 4 tubing Filter strainer 12 CR330 1 2 MPT x 5 8 hose barb adapter 13 Hold down strap for the CR330 1 4 stainless steel screw type hose clamp 14 5 8 barb x
5. ZoMarvair CR330 Owner s Manual Chapter 1 SOWING is oesacenscacesacesseeunentecessacecenesmeeandnessaaaacoeeseuncannesscweedeneseeadnmacunces 2 Chapter 2 Installing the CR330 sssssssesnssnnrnnnnnnnnnnnnnnnnnsnnnnnnennsnnnnnnnnnsnnennnnnnnnnnannn 2 Chapter 3 Maintenance of the CR330 sssssssssrserrsrsnsrrrrrnrnnsrsrnrerrnnrnnnnnrrenrnnnenrnenee 5 Chapter 4 Replacement Parts List nesessssssnsresnnnnnnsrnrnrnrennrnnnnenennrnnnnnrennrennesreanne 6 This is the safety alert symbol A When you see this symbol on the CR330 and in the instruction manuals be alert to the potential for personal injury Understand the signal word DANGER WARNING and CAUTION These words are used to identify levels of the seriousness of the hazard DANGER Failure to comply will result in death or severe personal injury and or property damage WARNING failure to comply could result in death or severe personal injury and or property damage CAUTION Failure to comply could result in minor personal injury and or property damage IMPORTANT is used to point out helpful suggestions that will result in improved installation reliability or operation N CAUTION Certain components will run at fairly high temperatures Exercise care in working around operating equipment Do not touch operating machinery without the aid of qualified personnel as referred to above Manufactured by Marvaire Division of AIRXCEL Inc Marvaire Marine UK
6. e line as described in the instructions Failure to close the check valve may result in the flooding or sinking of the boat Chapter 2 Installing the CR330 caution Before installing the CR330 turn the circuit breaker off to the air conditioner and to the water pump if the pump has a separate breaker If the pump turns on while the seacock or ball valve is closed damage to the pump may occur The CR330 is installed into the outlet water line of the Marvair air conditioner The discharge water flows through the CR330 to the overboard thru hull fitting Condensate from the drain pan flows into the CR330 and is pulled overboard by the discharge water from the air conditioner See Figure No 1 Included in the installation materials are 2 clear tubing and 5 8 clear tubing Various lengths of this tubing must be cut to connect the components To optimize the performance of the system be sure to follow the recommendations for the lengths of tubing See Figure 1 Locate the outlet discharge water line on your Marvair air conditioner Follow the water line looking for a suitable place to install the CR330 e The CR330 must be secured to a bulkhead to prevent movement while the boat is underway e The CR330 does not have to be level but the minimizing of bends in the tubing will improve the performance of the CR330 e The filter strainer must be checked and cleaned regularly Put the filter strainer in an easily accessibl
7. e place e Use pipe dope to seal all threaded connections CR330 Owner s Manual 10 09 Page 2 of 6 1 Cut the water outlet line between the air conditioner and the thru hull fitting where the CR330 is to be installed 2 The discharge water from the Marvair unit MUST flow through the CR330 in the proper direction See figure 1 a Screw the 5 8 barb x 7 MPT fitting into the inlet the end with the FEMALE threads of the CR330 as shown in figure 1 Slip the 5 8 discharge water line from the Marvair unit over the barbs and secure the water line with 5 8 stainless steel hose clamps To prevent the CR330 from moving while underway secure the water line with two hold down clamps If the CR330 moves the lines may loosen and leak causing the boat to flood b Screw the x coupling onto the end of the CR330 with the MALE threads Screw the 5 8 barb x FPT fitting into the coupling Use pipe dope to seal all threaded connections Slip the 5 8 water line from the thru hull over the barbs and secure the water line with 5 8 stainless steel hose clamps To prevent the CR330 from moving while underway secure the water line with two hold down clamps If the CR330 moves the lines may loosen and leak causing the boat to flood Condensate line assembly Refer to Figure 1 3 Install the 5 8 hose barb x 5 8 fitting into the inlet side of the filter strainer Install the 72 MPT x barb fitting into the discha
8. rge end of the filter strainer Use pipe dope to seal each threaded connection 4 Cuta 12 30 5 cm piece of 5 8 tubing Connect one end of the clear 5 8 tubing to the condensate fitting on the drain pan of the Marvair air conditioner Secure this connection with a 5 8 screw type stainless steel screw type hose clamp Install hold down clamps to prevent the line from moving Av CAUTION Water must flow in the proper direction through the filter strainer On the side of the strainer is an arrow that indicates the correct direction Make sure the water flow is aligned with the arrow 5 Connect the other end of this 5 8 tubing to the inlet side of the filter strainer Secure this connection with a 5 8 stainless steel screw type hose clamp 6 Cut a 2 1 2 6 cm piece 1 4 clear tubing and connect it to the 1 4 end to the filter strainer Secure with a 1 4 stainless steel screw type clamp Connect the other end of the 1 4 tubing to the check valve and secure with 1 4 stainless steel screw type hose clamp Install hold down clamps to prevent the line from moving uN CAUTION The check valve allows water to flow in one direction from the condensate drain pan into the CR330 To determine the proper orientation of the check valve blow into one end of the check valve If air passes freely through the valve this is the correct direction for the water flow CR330 Owner s Manual 10 09 Page 3 of 6 10 1
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