Summary of Contents for Quest Engineering IQ Compressor Wall Series
- Page 1 IQ SERIES GROW ROOM HVAC Compressor Wall OPERATION AND MAINTENANCE MANUAL Q u e s t C l i m a t e . c o m...
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Page 2: Table Of Contents
Table of Content General Information ......................2 Document Scope ............................2 Contact Us ..............................2 Operating Safety (Warnings, Cautions, and Notes) ................... 2 Basic Information ........................4 HVAC system View and Options ........................ 4 Air Conditioning Options – Outdoor Air Dry coolers (OAFC)..............7 Equipment Specific Data .......................... -
Page 3: General Information
General Information Document Scope This manual provides operation and maintenance information about the Quest IQ Compressor Wall HVAC system and its operation. Additional information regarding installation, maintenance, and equipment commissioning and auxiliary devices (dry cooler, communication interfaces, etc.) is provided with the HVAC system and can also be obtained from the manufacturer. - Page 4 The following warnings, cautions, and notes appear throughout this manual and referenced documentation whenever special care must be taken to avoid potential hazards that could result in equipment malfunction or damage, personal injury, or death. Note CAUTION WARNING Indicates a situation that could Indicates a potentially hazardous Indicates a potentially hazardous result in equipment damage or...
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Page 5: Basic Information
Basic Information HVAC system View and Options Standard AG series HVAC systems are semi-custom: while basic concept and layout is the same, options and specific systems and components layout and location may vary from one HVAC system to another. One of the typical HVAC system arrangement is shown on Pic.C.1. - Page 6 HVAC system Options • Indoor or outdoor installation. Note: Pic. C.1. shows outdoor model. • Capacity (number of 2-stage compressor pods or modules) – (see HVAC system Optional Arrangement below for more details): 2-compressor modules AG-012 & AG-016 3-compressor modules AG-020 4-compressor modules AG-024 &...
- Page 7 HVAC system External Systems Connection Pic. C.1 shows provisions for external systems connections, including ductwork, electric power and control wires and various piping connections. CAUTION! Current manual shows general/default connections’ location. For details regarding specific HVAC system’s connections (actual location, piping sizes and position dimensions, circuit type and flow direction etc.), refer to the HVAC system’s submittal documentation as well as HVAC system’s labels and stickers.
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Page 8: Air Conditioning Options - Outdoor Air Dry Coolers (Oafc)
Air Conditioning Options – Outdoor Air Dry coolers (OAFC). Basic views of standard air conditioning options are shown on Pic.C.4 (below); standard combinations of the HVAC system and dry cooler models (based on their capacities) are shown in Table C.1. Note, that depending on ambient conditions, HVAC system may have different cooler provided with it - refer to the HVAC system’s submittal documentation for more details. - Page 9 Attention! Equipment Clearances! 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.
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Page 10: Equipment Specific Data
Equipment Specific Data Specific information for individual HVAC systems is provided in the following methods: Nameplate (Pic. C.5): the manufacturer tag attached to the front of the system includes the system’s most critical data: General data including: Serial number HVAC system model (nomenclature) Design room conditions (air temperature and humidity) -
Page 11: Layout And Components
Layout and Components The general layout and components location is the same for all HVAC systems of current type, however some may vary, based on the HVAC system’s specific options – refer to submittal documentation. Pic. D.1 below shows all/most available options, some of which may not be present on your HVAC system. HVAC system Main Components •... - Page 12 September 2020 Quest IQ Compressor Wall OMM...
- Page 13 Compressor Module (detailed; see Pic.D.1C). Pic. D.1C • Each compressor module contains a Compressor (13), Plate heat exchanger (14), Evaporator Coil (15), and other refrigeration components to complete a self-contained refrigerant circuit within each module. Each module also includes a Control Module (17). •...
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Page 14: Control System
Control sub-panel with Main Control Board (not shown) and Operator Panel (not shown) is normally mounted with the Main Electric Panel (2) on the compressor stand frame. • Main Electric Panel (2) contains main Disconnect (77), if one is installed, and other electrical and control components (contactors, fuses, control transformer etc.). -
Page 15: Dry Cooler Layout And Components
Each compressor module is equipped with High and Low Pressure switchesTransducer and High Pressure Switch to protect the compressor and control its operation. Main Electric Panel, apart from devices listed above (control board, OP, etc.) also contains Voltage Monitor; some optional control sensors and devices such as an air pressure differential sensor, current sensor(s). - Page 16 Piping connection location may vary – refer to particular cooler labels, stickers, submittal and other documentation. • Electric power is normally to be brought to disconnect (35) (if cooler is equipped with such), which feeds it to the electrical box (36), that contains cooler power and control apparatuses. Depending on dry cooler specifics, location of electrical box may slightly differ;...
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Page 17: Sequence Of Operation
Sequence of Operation The HVAC system’s ventilation system establishes the required airflow through the HVAC system. The control system compares air temperature and humidity to their desired values (set points) and proceeds to dehumidify, cool or heat the recirculating air. Set Points The control system is constantly adjusting HVAC system operation to achieve and maintain said parameters within couple degrees/percent of the set point. - Page 18 Compressors Whenever the compressor operates, the evaporator is always dehumidifying and cooling the return air. The heat removed from the air at the evaporator, as well as the heat from the compressor's action, must be rejected to one of three heat sinks: grow room (premise) air or outdoors. The control system will direct the heat to where it is needed based on grow room air temperatures: •...
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Page 19: Economiser Option (Eco-Coil)
• Based on the premise air temperature, the Reheat and AC valves would adjust their opening position (open more/close more), reducing or increasing fluid flow to and through the respective fluid coils: Reheat and AC valves are controlled in the same manner with opposite effect: for example, when AC valve opens 10% more, Reheat valve closes 10% more etc. -
Page 20: Basic Maintenance
Basic Maintenance Although 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 HVAC system and its auxiliary systems and devices (e.g. dry cooler) must be maintained properly and regularly. It is recommended to create a facility-specific Routine Maintenance Program. -
Page 21: Routine Maintenance Program
Routine Maintenance Program Creating facility-specific routine maintenance program and following it is vital to equipment longevity and efficient operation. The suggested general maintenance operations and their frequency/intervals, listed in the table M-1 below, can be used to create such a program. For more detailed maintenance recommendations related to specific components, refer to the respective component manufacturer’s manual. -
Page 22: Specific Components Maintenance
Specific Components Maintenance Actual maintenance plan may vary from installation to installation, yet there are several key components from maintenance prospective. If needed, contact respective component manufacturer for additional maintenance information. Filters • Ensure air filters are clean. Dirty air filters will negatively affect HVAC system performance and lifetime •... -
Page 23: Dry Cooler Maintenance
Dry Cooler Maintenance Quest equipment is intended to provide the ability to perform sensible cooling year-round. As such, systems are sold with appropriate glycol concentrations to prevent freezing/burst hazards. Though dry cooler itself is normally equipped with means to be drained properly/fully, it is recommended to have same means in place for entire system (dry cooler –... -
Page 24: Equipment Warranty
Equipment Warranty General Policy All Quest service and warranty work is managed exclusively by Dehumidified Air Services (DASV). All warranties apply to the original equipment owner and are not transferable. All warranty inquiries should be made through either Quest Customer Account Management or Dehumidified Air Services. Quest Customer Account Management: Phone: 1-833-327-2447 Email: Service@QuestClimate.com... - Page 25 applicability. Parts shipping and handling costs (to and from the factory) are not covered outside of the Initial 90‐ day Warranty. Replacement Part Warranty If a replacement part provided by Quest 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, Quest will provide a new or rebuilt part F.O.B.
- Page 26 the warranties described above. Quest expressly disclaims and excludes any liability for consequential or incidental damage for breach of any express or implied warranty. Where a jurisdiction does not allow limitations or exclusions in a warranty, the foregoing limitations and exclusions shall not apply to the extent of the legislation, however, in such case the balance of the above warranty shall remain in full force and effect.
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