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Related Manuals for Airflow AIR 125-R
Summary of Contents for Airflow AIR 125-R
- Page 1 HEAT RECOVERY VENTILATORS & HEAT RECOVERY VENTILATORS & METRO IOM ENERGY RECOVERY VENTILATORS ENERGY RECOVERY VENTILATORS HRV: ERVs: AIR 125-R AIR 120-ERVR-ECM AIR 140-ERVF AIR 180-ERVF-ECM Installation, Operation Installation, Operation and Maintenance Manual and Maintenance Manual airflowiaq.com...
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Page 2: Table Of Contents
Installation Methods - Fully Dedicated..................... Unit Installation Location and Restrictions..................... Mounting the Unit............................Installing the Drain Connection......................... Grilles................................Grille Fittings..............................Airflow Weatherhoods..........................Dual Hood Kit..............................Terminal Blocks............................. Installation and Operation of DET02 Wireless Timer................Installation and Pairing of RX02 Repeater..................... Installation of DET01 Timer........................ -
Page 3: Shipping And Packing List
AIR 180-ERVF-ECM, AIR 140-ERVF 8x Screws 1x Terminal Block Connection 1x Ventilation Label 4x Mounting Brackets AIR 125-R 12x Screws 1x Cup Drain Spout WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. -
Page 4: Specifications
Specifications - ERV Units Table 2. ERV Specifications Specifications Model No. AIR 180-ERVF-ECM AIR 120-ERVR-ECM AIR 140-ERVF Unit Weight in pounds (kg) 42 (19) 37 (17) 42 (19) Unit Dimensions Refer to “Dimensional Drawings” on pages 10 & 11. High Speed (HVI Certified) Inches wg (Pa) CFM (L/s) CFM (L/s) - Page 5 Pre-Filters Supply & Exhaust ** To be ordered separately. Comes in a set of 4 and is installed in the Fresh Side only. When a MERV 13 filter is installed for the first time, airflow will need to be balanced. Condensate Drain Connections: Spouts: qty.
- Page 6 Specifications - HRV Units Table 3. HRV Specifications Specifications Model No. AIR 125-R Unit Weight in pounds 37 (17) (kilograms) Unit Dimensions Refer to “Dimensional Drawings” on pages 10 & 11. High Speed (HVI Certified) Inches wg (Pa) CFM (L/s) 0.1 (25)
- Page 7 Pre-Filters Supply & Exhaust ** To be ordered separately. Comes in a set of 4 and is installed in the Fresh Side only. When a MERV 13 filter is installed for the first time, airflow will need to be balanced. Cup Style Drain...
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Page 8: Optional Fan Curve Speeds
Optional Fan Curve Speeds - ERV Units Table 4. ERV Optional Fan Curves Speeds (Factory Tested) Single-Core ERV Units Model No. AIR 180-ERVF-ECM AIR 120-ERVR-ECM AIR 140-ERVF Speed 5 - High IN. wg (Pa) 0.1 (25) 0.2 (50) 0.3 (75) 0.4 (100) 0.5 (125) 0.6 (150) - Page 9 Optional Fan Curve Speeds - HRV Units Table 5. HRV Optional Fan Curves Speeds (Factory Tested) Single-Core HRV Units Model No. AIR 125-R Speed 5 - High IN. wg (Pa) 0.1 (25) 0.2 (50) 0.3 (75) 0.4 (100) 0.5 (125) 0.6 (150)
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Page 10: Dimensional Drawings
25 3/4 in (654mm) 9-3/4 in. (248 mm) Core 5 in. (125 mm) Collars Recirculating Filters Defrost Damper Figure 2. AIR 125-R Standard Airflow: DOOR CLOSED DOOR CLOSED VIEW SIDE VIEW DOOR OPEN VIEW Stale Air to Outside Fresh Air from Outside... -
Page 11: Defrost Overview
Recirculating Damper Defrost Applicable Units: AIR 120-ERVR-ECM, & AIR 125-R During defrost a motor driven damper door mechanism closes off the supply air from outside allowing stale air to recirculate through the unit’s core. During the defrost portion of the cycle no ventilation is occurring. After the defrost portion of the cycle, the damper operates in the opposite direction to reopen the fresh air port. -
Page 12: Required Ventilation
Required Ventilation ASHRAE • ASHRAE 62.2-2019 is a national standard that provides methods for achieving acceptable indoor air quality in typical residences. It was developed and is maintained by the American Society of Heating and Air-Conditioning Engineers (ASHRAE). • This standard recommends Dwelling-Unit Ventilation, which is a mechanical exhaust system, supply system, or combination thereof. -
Page 13: How The Dehumidistat Works
How the Dehumidistat Works When using either the GBC02, GBC03 or the GDXPL03 a built-in dehumidistat is present. The following information is provided on how it works. High indoor humidity levels, during the heating season, have become a problem in many well insulated, tight homes. Excessive condensation on the windows is a visual sign of high indoor humidity levels. -
Page 14: Gbc02 Basic Control
GBC02 Basic Control Note: The AIR 180-ERVF-ECM CANNOT be controlled by a GBC02 basic control. The control offers the following features to control your home’s ventilation. • Two-speed fan setting (LOW / HIGH) • Standby setting (fan OFF) • Electronic dehumidistat •... -
Page 15: Gbc03 Basic Control
GBC03 Basic Control Note: The AIR 180-ERVF-ECM CANNOT be controlled by a GBC03 basic control. Humidity Setting The control offers the following features to control your home’s ventilation. 20 / 40 20/40 Mode Low Fan Indicator Speed • Low-speed fan setting Indicator Recirculation Mode... -
Page 16: Gdxpl03 Deluxe Control
GDXPL03 Deluxe Control Note: ALL UNITS can be controlled by GDXPL03 deluxe control. The control offers the most advanced features to control your home’s ventilation. • Five-speed fan setting • Standby setting (fan speed 0) • Electronic dehumidistat • 20/40/60 HIGH Speed override Button •... -
Page 17: Det01 Wired Timer
DET01 Wired Timer Timers are available as wired or wireless. The timer will override the operational mode of the control (regardless of the setting) and initiate HIGH fan speed Ventilation for 20, 40 or 60 minutes. The HRV / ERV will return to the selected operational mode and fan speed setting upon completion of the timer cycle. -
Page 18: Overview Of Installation Methods
A well designed and installed ducting system will allow the HRV / ERV to operate at its maximum efficiency. All ducts should be kept as short as possible and have as few bends or elbows as possible to maximize airflow. 45 º... -
Page 19: Installation Methods - Simplified (Return/Return)
Weatherhood arrangement is for drawing purposes only. The weatherhoods are to be installed in accordance with local building codes or manufacturer recommendations. • The airflow can be confirmed on site using the balancing procedures found in this manual. Return Air Cold Air... -
Page 20: Installation Methods - Partially Dedicated
Unit is normally balanced on HIGH speed with the furnace blower ON. • Weatherhoods are to be installed in accordance with local building codes or manufacturer recommendations. • The airflow must be confirmed on site using the balancing procedures found in this manual. Return Air Cold Air Return Exhaust Air from various parts of building. -
Page 21: Installation Methods - Fully Dedicated
Unit is normally balanced on HIGH speed. • Weatherhoods are to be installed in accordance with local building codes or manufacturer recommendations. • The airflow must be confirmed on site using the balancing in this instruction. Damper for Stale Air balancing from various parts of airflows... -
Page 22: Unit Installation Location And Restrictions
Unit Installation Location Install the unit in a heated space that provides clearance for service access. A typical location is in either a mechanical room or an area close to the outside wall within proximity to where the weather hoods are mounted. If a basement area is inconvenient or non- existent, install the unit in a utility room or laundry room. -
Page 23: Mounting The Unit
(AIR 140-ERVF & AIR 180-ERVF-ECM only). Installing the Drain Connection (HRV’s only) Applicable Unit: AIR 125-R. The HRV’s have a 4-position drain spout to allow for easy and quick installation of the condensate drain hose (see below). The HRV may produce some condensation during a defrost cycle. -
Page 24: Grilles
They should be installed at least 4 ft (1.2 m) horizontally away from the stove. Field supplied balancing dampers should be installed external to the unit to balance the amount of stale air being exhausted with the amount of fresh air being brought into the house. Refer to airflow balancing section. Removable Filter The Kitchen Grille The Kitchen Grille includes a removable grease filter. -
Page 25: Grille Fittings
Grille Fittings Quick Mount Fitting (Part# 99-QM6) Stack Head Elbow (Part# 99-WF 4/6) • Use this rough-in fitting before the drywall is installed. • Use this rough-in fitting before the drywall is installed. • Nail fitting onto the stud. • This fitting is ideal for running ducting through •... -
Page 26: Airflow Weatherhoods
• Twisting or folding the duct will severely restrict airflow. • Hard (rigid) ducting which has been sealed and insulated should be used for runs over 10 ft (3.3 m). Refer to your local building code. -
Page 27: Dual Hood Kit
The Dual Hood Kit offers the benefit of requiring only one 6” (152 mm) hole in the exterior wall (as opposed to two separate weatherhoods) to complete the connections for fresh air intake and stale air stale. The pressure drop/airflow charts should be referred to when matching the Dual Hood to the HRV / ERV. -
Page 28: Terminal Blocks
Top View NO NC DH Figure 22. Type A Figure 23. Type B The AIR 140-ERVF & AIR 180-ERVF-ECM The AIR 125-R, & AIR 120-ERVR-ECM have a TB04 Terminal Block. have a TB01 Terminal Block. Installation of Controls Face Plate... -
Page 29: Installation And Operation Of Det02 Wireless Timer
Installation and Operation of DET02 Wireless Timer NOTE: DET02 Wireless timers can only be used with wall mounted GBC02, GBC03, GBC04, GDXPL02, or GDXPL03 controls. Back Plate The DET02 wireless timers may be installed onto a flush mounted electrical switch box or it may be surface mounted onto a wall. Multiple DET02 1/8”... -
Page 30: Installation And Pairing Of Rx02 Repeater
Installation and Operation of DET02 Wireless Timer (continued) Unpairing Remove the battery from the back of the wireless timer. Press and hold the button on the front of the DET02 Wireless Timer. While holding the button, reinsert the battery in the DET02 Wireless Timer. Continue holding the button, until all lights on the DET02 Wireless Timer stop flashing. -
Page 31: Installation Of Det01 Timer
Installation and Operation of DET01 Timer Terminal Block Installation Requirements The following installation requirements must be followed: Connect to 4 (YEL) • Timers mount in standard 2 x 4” (51 x 102 mm) electrical boxes. Connect to 3 (RED) • If multiple timers are used, individually wire each timer to the unit. -
Page 32: Electrical Connections
Electrical Connections Plug the HRV / ERV directly into a standard designated 120VAC electrical outlet. Use of an extension cord is NOT RECOMMENDED for this appliance. If further wiring is required, then a licensed electrician should make all electrical connections. It is recommended that a separate 15A/120V circuit be used. -
Page 33: Unit Wiring Diagrams
Unit Wiring Diagrams Applicable Units: Applicable Units: AIR 140-ERVF AIR 120-ERVR-ECM CAUTION: ELECTRICAL CONTROL PANEL, SERVICE BY ELECTRICIAN ONLY Legend THERMISTOR High Voltage (NOT ON ALL UNITS) 12V Low Voltage COMMS Blue GREEN WHITE NEUTRAL FAN OP LINE TRANSFORMER HRV CIRCUIT BOARD BLUE YELLOW BLACK... - Page 34 Unit Wiring Diagrams Applicable Units: AIR 125-R CAUTION: ELECTRICAL CONTROL PANEL, SERVICE BY ELECTRICIAN ONLY Legend High Voltage 12V Low Voltage Thermistor (Not on all units) Blue COMMS BLACK GREEN WHITE FAN OP LINE NEUTRAL Auto Transformer Note: If any of the original wire...
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Page 35: Unit Dip Switch Orientation
Dip 2 On - Recirculation Enabled (damper defrost models only) Dip 2 Off - Recirculation Disabled (fan defrost models only) Applicable Units: AIR 120-ERVR-ECM, & AIR 125-R Table 15. Dip Switch Orientation for AIR 120-ERVR-ECM, & AIR 125-R SWITCH 1 Speed... -
Page 36: Adjusting The Ec Motor
HRV / ERV will not defrost properly The AIR 120-ERVR-ECM, & AIR 125-R are considered “factory balanced”. Due to the design of the unit, if the supply and exhaust static pressure of the duct installation are within 0.3 (in w.g.) of each other, the supply and exhaust airflows will be within 10% of each other. - Page 37 Example: This example shows how to determine the airflow for a 6 in diameter duct. If the duct velocity pressure reads 0.025 in w.g. on the digital manometer, use the chart that came with the pitot tube to determine a duct velocity of 640 ft/min. for a duct velocity pressure of 0.025 in w.g.
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Page 38: Balancing The Airflows - Collar Port Method
Re-plug collars. Refer to the “Airflow Chart for Collar Port on AIR 140-ERVF” on page 39 and determine the supply and exhaust airflow rates. Damper down the higher airflow and repeat steps 4 through 7 as required until both airflows are suitably balanced. - Page 39 Airflow Charts for Collar Port Balancing on AIR 140-ERVF Hi 3 Hi 2 Hi 1 Supply Exhaust Supply Exhaust Supply Exhaust Pressure Drop Pressure Drop Pressure Drop Airflow Airflow Airflow Airflow Airflow Airflow (“w.g.) (Pa) (cfm) (cfm) (“w.g.) (Pa) (cfm) (cfm) (“w.g.)
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Page 40: Auto Balancing
Auto Balancing Auto balancing enables the installer to dial in precise airflow to meet design and code requirements and the units will maintain the airflows through auto balancing after they are set. Balance Indicator – will Exhaust Supply Applicable units:... -
Page 41: Fault Indicator Display Board (Fid)
3. To prevent false alarms Err 1, 3 & 4 have a time delay built-in. These also tie into the fail-retry logic when in Auto Balancing. For example, the sequence of events for a pressure sensor failure would be: a. After selecting a speed or changing mode the system will disable speed/cfm alarms for 1-minute to allow the airflow to stabilize. -
Page 42: Troubleshooting
Locate the grilles high on the walls or under the baseboards • Install ceiling mounted diffuser or grilles so as not to direct airflow onto occupants (e.g. over a couch) • Turn down the HRV / ERV supply speed •... -
Page 43: Homeowner Maintenance Information
(bird screen). IMPORTANT Blockage of hoods or vents may cause an airflow imbalance. Clean or replace air filters 4 times a year. Clean factory provided MERV 6 polyester filter and replace MERV 13 paper framed filter: Disconnect power to the unit. - Page 44 NOTE: Impellers may accumulate dirt causing an imbalance and/or excessive vibration of the HRV / ERV unit. A reduction in the airflow may also occur. In new construction, this may result within the first year due to heavy dust. Disconnect power to the unit.
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