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Summary of Contents for Seresco CWT Series
- Page 2 Seresco CWT Series OMM January 2022...
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Page 3: Table Of Contents
Remote Communication ............................26 Basic Maintenance ............................... 27 Maintenance and Safety ............................27 Maintenance Key Points ............................27 Routine Maintenance Program ..........................28 Specific Components Maintenance ......................... 29 Pools – Equipment Warranty ..........................31 January 2022 Seresco CWT Series OMM... -
Page 4: General Information
General Information This manual provides basic information about the applicable Seresco dehumidifier and its operation. Important information regarding installation, maintenance, and start up as well as additional and auxiliary systems and devices (outdoor condenser, communication interfaces, etc.) is normally provided with the dehumidifier and can also be obtained from the manufacturer (see Contact Us below). -
Page 5: Reference And Additional Information
Contact Us Seresco 1-833-DAS-POOL (327-7665) 1071 Ages Drive Schedule / Modify a Start-up: Ottawa, ON K1G 6L3 Startups@DehumidifiedAirServices.com Canada Inquire about Warranty: SerescoDehumidifiers.com Warranty@DehumidifiedAirServices.com Order Parts: Parts@DehumidifiedAirServices.com All Other Product Support: Support@DehumidifiedAirServices.com January 2022 Seresco CWT Series OMM... -
Page 6: Basic Information
Basic Information Seresco CWT Series OMM January 2022... - Page 7 Dehumidifier View and Options Pic. C.1 January 2022 Seresco CWT Series OMM...
- Page 8 Seresco CWT Series OMM January 2022...
- Page 9 Standard CWT series dehumidifiers are semi-custom: while basic concept and layout is the same, options and specific systems and components layout and location may vary from one dehumidifier to another. One of the typical dehumidifier arrangement is shown on Pic.C.1.
- Page 10 Electric Power and Control Connection. Electric power is normally brought to the dehumidifier disconnect, normally incorporated with main electric panel (see Pic. C.1). If dehumidifier is not equipped with the disconnect, power lines to be brought directly to the main electric panel. Seresco CWT Series OMM January 2022...
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Page 11: Pool Water Heating Option - Bonding
NG-V-62 (Fig.3) composed of six of them. CWT076 – 121 NG-V-52 CWT091 – 121 2*NG-V-32 As an option, each block of fluid cooler could be equipped with the pump CWT106 2*NG-V-42 CWT121 2*NG-V-52 package (as shown on Fig.1 for NG-V-12). January 2022 Seresco CWT Series OMM... - Page 12 Proper clearances should be maintained for adequate airflow and heat rejection! Generally, up to 36” side and 96” top clearances are required. For more information on clearances as well as equipment dimensions and other details, refer to the submittal documentation. Pic. C.4 Seresco CWT Series OMM January 2022...
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Page 13: Equipment Specific Data
Glycol mixture concentration is normally shown on Main Label – refer as needed. January 2022 Seresco CWT Series OMM... -
Page 14: Layout And Components
Gas heater (not shown) is usually located downstream of the main blower(s). Pic. D.1B If equipped, the fluid-to-fluid gasketed titanium Pool Water Heat Exchanger(s) (19) are located downstream of the compressor wall. Seresco CWT Series OMM January 2022... - Page 15 Pic. D.1 January 2022 Seresco CWT Series OMM...
- Page 16 The compressor wall has a Evaporator Bypass Damper (18) located above the compressor wall and sized appropriately to begin bypassing air around the evaporator coils at a certain suction temperature to adjust sensible heat ratio. Seresco CWT Series OMM January 2022...
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Page 17: Control System
(one sensor per each compressor circuit). SA temperature sensor (24) measures the temperature of the air leaving the dehumidifier (supplied to the premise). It must be located downstream of the space heater: January 2022 Seresco CWT Series OMM... -
Page 18: Outdoor Air Fluid Coolers Layout And Components
NG-V-12, equipped with additional pump package (Fig.1) and NG-V-32 (Fig.2) as an example. While layout and main components are similar for all applicable AC options, there are some deviations (number of fans, composition, etc.). Refer to AC Options Basic View (Basic Information chapter) for additional information. Pic. D.5 Seresco CWT Series OMM January 2022... - Page 19 The pump package electrical sub-panel (40) contains the pump package electrical power and control apparatuses. The pump package manifolds are usually equipped with pressure gauges, automatic air venting valve, draining and other valves. Pic. D.6 January 2022 Seresco CWT Series OMM...
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Page 20: Sequence Of Operation
Complete air changeover, triggered manually, is known as Purge Mode. Note. Externally installed Exhaust Fan(s) and Outdoor Air damper(s) could be also controlled by the dehumidifier control system. This applies to both, Minimum and Purge/Additional, fans and dampers. Seresco CWT Series OMM January 2022... -
Page 21: Space Heating
Dehumidification or Air Conditioning mode(s), control system would simply increase exhaust fan(s) speed signal to direct more stale return air outside and bring in more outdoor (dry/cool) air in, thus reducing supply air humidity and/or temperature (as needed). January 2022 Seresco CWT Series OMM... - Page 22 – pump would stay engaged while fans are engaged (regardless of the fans’ speed). Seresco CWT Series OMM January 2022...
- Page 23 Pic. E.2 January 2022 Seresco CWT Series OMM...
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Page 24: Interface And Communication
Logs button, then press the Current Alarms button; press the Clear button next to the respective alarm (the alarm that’s locked out the device or entire dehumidifier). For detailed information on TouchDisplay OP refer to DASV Touch Display Manual, provided with the dehumidifier (or contact factory to obtain a copy). Seresco CWT Series OMM January 2022... -
Page 25: Alarms
For more details regarding alarms and alerts, refer to the Alarms Description information (available via Help feature in Touch Display OP); contact factory if needed. January 2022 Seresco CWT Series OMM... -
Page 26: Remote Communication
If dehumidifier is equipped with LON communication option, it’s normally provided with pre-wired LonWorks Gateway for communication purposes. For more information about Web Monitor or BMS communication set up (connection, configuration, access, point cutsheets, etc.) – contact factory. Pic. F.2 Seresco CWT Series OMM January 2022... -
Page 27: Basic Maintenance
Basic Maintenance Although Seresco equipment is built for minimal service downtime, periodic preventative maintenance is required to ensure maximum reliability, safety, and operating efficiency. WARNING! To ensure equipment longevity and proper and efficient operation, the dehumidifier and its auxiliary systems and devices (outdoor condenser, fluid cooler, boiler package, etc.) must be maintained properly and regularly. -
Page 28: Routine Maintenance Program
Check gasket condition on all doors to ensure an airtight seal Check bolts on compressors, motor mounts, dehumidifier bases and coils and tighten if required Verify that the airflow around the remote condenser or dry cooler is unobstructed Seresco CWT Series OMM January 2022... -
Page 29: Specific Components Maintenance
Thoroughly rinse both sides of the coil and the drain pan with, clean water Straighten any coil fins that have been bent during the cleaning process Confirm the drain line is clear Replace all panels and parts and restore electrical power to the equipment January 2022 Seresco CWT Series OMM... - Page 30 Seresco CWT Series OMM January 2022...
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Page 31: Pools - Equipment Warranty
Email: Warranty@DehumidifiedAirServices.com Seresco warrants as set forth and for the time periods shown below that it will provide through either a DASV Service Technician or an authorized service organization specified and approved by DASV, a new or rebuilt part to replace a factory installed part which has failed because of defect in workmanship or material. - Page 32 Replacement Part Warranty If a replacement part provided by Seresco under this warranty fails due to a material defect prior to the end of the Two-Year Parts Warranty (or the end of the extended warranty period if applicable), whichever comes first, Seresco will provide a new or rebuilt part F.O.B.
- Page 33 2. Optional Five-Year Dehumidifier Coil Warranty Subject to the terms above, Seresco will provide a replacement coil for up to 60 months from the date of the warranty activation. Extended coil warranties are for parts of the dehumidifier only and does not cover parts of dry cooler or OACC coils.
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