Panasonic FV-35ZY1 - User Manual

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Thank you for purchasing this Panasonic product.

Please read these instructions carefully before attempting to install, operate or service

the Panasonic product. Please carefully read “INSTALLATION INSTRUCTIONS” (P.2~5)

of this instructions before installation. Failure to comply with instructions could result

in personal injury or property damage. Please explain to users how to operate and

maintain the product after installation, and this booklet should be presented to users.

Please carefully read “USE AND MAINTENANCE INSTRUCTIONS” (P.16~17) of this

instructions before operation.

Please retain this booklet for future reference.

Model No.

INSTALLATION AND OPERATING

INSTRUCTIONS

Energy Recovery Ventilator

FV-15ZY1

FV-50ZY1

FV-1KZY1

FV-25ZY1

FV-65ZY1

FV-1HZY1

FV-35ZY1

FV-80ZY1

FV-2KZY1

CONTENTS:

SAFETY INSTRUCTIONS

·····················

INSTALLATION INSTRUCTIONS

·············

2～5

INSTALLATION AND OPERATING REQUIREMENTS

5～6

PRODUCT FEATURES

·······················

SUPPLIED ACCESSORIES

····················

PART NAMES AND DIMENSIONS

···········

7～8

WORK BEFORE INSTALLATION

···············

HOW TO INSTALL

·····················

10～15

TEST RUN

···························

15～16

USE AND MAINTENANCE INSTRUCTIONS

···

16～17

MAINTENANCE

·······················

18～20

WIRING DIAGRAM

····················

21～22

TROUBLESHOOTING

······················

SPECIFICATIONS

··························

OPTIONAL ACCESSORIES

··················

Main Page

Questions and Answers

B
Bradley JonesAug 8, 2025
What to do if my Panasonic FV-35ZY1 doesn't work?
- A
  Alexis MillerAug 8, 2025
  First, ensure the all-pole switch is turned on. If a power failure occurred, wait for the power supply to recover, then try running the fan again. Also, a dust-clogged filter can prevent the fan from working; conduct maintenance to clean the filter.
R
Robert RiveraAug 21, 2025
Why does my Panasonic FV-35ZY1 stop when selecting an operating mode?
- M
  Michael BrayAug 21, 2025
  The product may stop to allow the damper to move smoothly. This is normal operation, and no action is required.

Summary

Safety Instructions

Warnings and Cautions Explained

Explains danger levels (warning, caution) and instruction types (caution, prohibited, compulsory).

Installation Instructions

Critical Installation Warnings

Critical installation warnings to prevent fire, electric shock, and injury.

Installation Instructions (Continued)

Further Installation Precautions

How to Install (Continued)

Support and Duct Installation

Guidance on securely installing supports and duct insulation and connection.

How to Install (Continued)

Wire Connection Procedures

Steps for stripping power cord, opening electrical box, and connecting wires.

Wiring Sketch and Diagrams

Visual representation of power cord wiring and connection points.

Use and Maintenance Instructions

Critical Usage Warnings

Critical warnings for repair, combustion appliances, water contact, and filter cleaning.

Use and Maintenance Instructions (Continued)

Operational Prohibitions and Cautions

Wiring Diagram

Wiring Diagram for FV-15 ZY1 to FV-50 ZY1

Electrical wiring diagram for specific models, including switch and damper connections.

Wiring Diagram for FV-65 ZY1 to FV-1 KZY1

Electrical wiring diagram for other models, including switch and damper connections.

Wiring Diagram (Continued)

Wiring Diagram for FV-1 HZY1, FV-2 KZY1

Electrical wiring diagram for FV-1HZY1 and FV-2KZY1 models.

Troubleshooting

Troubleshooting Common Problems

Table to diagnose and resolve common operational issues like no start or noise.

Summary

Safety Instructions

Warnings and Cautions Explained

Explains danger levels (warning, caution) and instruction types (caution, prohibited, compulsory).

Installation Instructions

Critical Installation Warnings

Critical installation warnings to prevent fire, electric shock, and injury.

Installation Instructions (Continued)

Further Installation Precautions

How to Install (Continued)

Support and Duct Installation

Guidance on securely installing supports and duct insulation and connection.

How to Install (Continued)

Wire Connection Procedures

Steps for stripping power cord, opening electrical box, and connecting wires.

Wiring Sketch and Diagrams

Visual representation of power cord wiring and connection points.

Use and Maintenance Instructions

Critical Usage Warnings

Critical warnings for repair, combustion appliances, water contact, and filter cleaning.

Use and Maintenance Instructions (Continued)

Operational Prohibitions and Cautions

Wiring Diagram

Wiring Diagram for FV-15 ZY1 to FV-50 ZY1

Electrical wiring diagram for specific models, including switch and damper connections.

Wiring Diagram for FV-65 ZY1 to FV-1 KZY1

Electrical wiring diagram for other models, including switch and damper connections.

Wiring Diagram (Continued)

Wiring Diagram for FV-1 HZY1, FV-2 KZY1

Electrical wiring diagram for FV-1HZY1 and FV-2KZY1 models.

Troubleshooting

Troubleshooting Common Problems

Table to diagnose and resolve common operational issues like no start or noise.

Overview

Function Description
Important Technical Specifications
Usage Features
1. Installation Requirements
2. Operating Conditions & Precautions
Maintenance Features

This document provides installation and operating instructions for the Panasonic Energy Recovery Ventilator, covering models FV-15ZY1, FV-25ZY1, FV-35ZY1, FV-50ZY1, FV-65ZY1, FV-80ZY1, FV-1KZY1, FV-1HZY1, and FV-2KZY1.

Function Description

The Panasonic Energy Recovery Ventilator is designed to provide efficient ventilation while recovering thermal energy, leading to several benefits:

Energy Saving Ventilation: By efficiently recovering thermal energy lost during ventilation (load incurred by outside air), the unit helps save air-conditioning costs.
Facility Saving: The drastic reduction of load incurred by outside air allows for more compact air-conditioners in parallel with the energy recovery function.
Humidity Adjusting Effect: In cooling mode, highly humid open-air is brought near a dehumidified room atmosphere and then supplied. In heating mode, room humidity is transferred to the dry outside air and then supplied.
Comfortable and Consistent Ventilation: Ventilation is achieved with minimal fluctuation of room temperature. Simultaneous exhaust and air intake ensure stable ventilation even in highly airtight rooms.
Sound Shield Effect: The ducts of the unit and the heat exchange core possess sound shield characteristics, preventing outside noise from entering and internal noise from escaping, thus preserving the office and store environment.
RS485 Central Control: The energy recovery ventilator can be connected to an optional remote control with RS485 function for central control management via BMS or similar systems.
Outdoor Filters: Outdoor filters conform to the F7 class of EN 799 standard, ensuring effective air filtration.

Important Technical Specifications

The specifications are provided for the Energy Recovery Mode at 220 V~ 50 Hz.

Model No.	Notch	Static pressure (Pa)	Outside air volume Exhaust air volume (m³/h)	Input power (W)	Temperature exchange efficiency (%) Cooling	Temperature exchange efficiency (%) Heating	Enthalpy exchange efficiency (%) Cooling	Enthalpy exchange efficiency (%) Heating	Noise (dB(A))	Weight (kg)
FV-15ZY1	High	100	150	76	68	83	66	76	37	23
	Low	36	90	30	75	84	69	76	29
FV-25ZY1	High	120	250	106	69	82	66	74	38	27
	Low	43.5	150	45	75	84	69	76	28
FV-35ZY1	High	140	350	141	71	83	67	75	39	37
	Low	50.5	210	58	76	84	69	76	33
FV-50ZY1	High	130	500	180	65	81	62.5	73	43	40
	Low	47	300	76	74	82	68	76	32
FV-65ZY1	High	150	650	420	64	82	62.5	72	45	48
	Low	54	390	180	68	84	66	75	34
FV-80ZY1	High	150	800	470	63	83	63.5	73	45	56
	Low	54	480	212	73	85	68	75	35
FV-1KZY1	High	150	1000	550	65	82	63	74	46	64
	Low	54	600	235	73	85	69	76	36
FV-1HZY1	High	130	1500	940	63	83	63.5	73	49	116
	Low	48	900	430	73	85	68	75	41.5
FV-2KZY1	High	130	2000	1100	65	82	63	74	51	139
	Low	48	1200	490	73	85	69	76	43.5

Input power and exchange efficiency values are measured under standard air volume.
Specifications are factory set.
Power indicated on the nameplate is the maximum value at 0 Pa static pressure.
Noise is measured 1.5 m directly below the center of the energy recovery ventilator in a full anechoic chamber. Actual ambient sound conditions may result in higher noise values (approximately 1 dB(A) increase under reverse installation).
Air volume in normal ventilation mode is similar to energy recovery mode.
Energy recovery efficiency tests are performed according to JIS B 8628 (2003) Appendix 4, with environmental conditions subject to JIS B 8628 (2017) Table 1 and Table 2.

Usage Features

Installation Requirements

Clearance: Maintain a minimum distance of 25 mm between the unit's underside and the ceiling board, and between the top of the unit and the mounting face of supports.
Inspection Opening: Ensure an inspection opening is reserved for maintenance. For reverse installation, the position of the inspection opening should also meet dimensional requirements.
Duct Installation: Ducts connected to the outdoor side should be tilted outwards (at a gradient of 1/100 to 1/50) to prevent rainwater ingress. Ducts must be suspended from the ceiling to prevent external force on the ventilator. Adapter joints and ducts should be sealed with aluminum or seal tape to prevent air leakage. Insulation materials (e.g., glass wool, 25 mm thick) should wrap the junction between the adapter and the duct, and ducts exposed to the outside.
Pipe Hood: Install pipe hoods outdoors (purchased separately) according to pipe size.
Backdraft Damper: The exhaust air outlet (EA) is equipped with a backdraft damper. If the suspension direction is opposite to the intended direction, unfasten screws and reinstall the air outlet so the arrow mark faces upward.
Electrical Connection: A suitable all-pole switch with a contact separation of more than 3 mm and a rated current above 10 A (site supplied) must be installed. The product must be grounded. Use 3-core wire (green/yellow wire) with a cross-section area of 2.5 mm² for power supply. For switch connections (SW1, SW2), use 2-core wire, and for other terminals with the switch, use 4-core wire, each with a cross-section area of 2.5 mm².
Air Volume Setting: Ventilation air volume can be adjusted by sliding switches (SW1, SW2, SW3, SW4) on the main unit, according to the specific model's performance table.
Remote Control (Optional): The FV-SWGR1 remote control is available. If using RS485 function, connect wiring according to the remote control's instructions. Note that the remote control and the switch cannot be used simultaneously.
Interlocking with Air Conditioner: For interlocking with an air conditioner, use a single-core wire (2.5 mm² cross-section) to connect terminal SW2 to HI, and a 2-core wire (2.5 mm² cross-section) to connect terminals SW1, COM to the volt-free contact. Do not use the air conditioner function with remote control simultaneously.
Safety: The product must be installed by professionals or trained personnel. Do not operate with voltages other than 220 V~ 50 Hz. Avoid installing the outside air inlet near pollution sources or where combustible/exhaust gases may enter. Do not install in places with heavy cooking oil fumes or where combustible gas leakage may occur. Ensure secure fixing of the product and components. Wear gloves and other protective tools during installation.

Operating Conditions & Precautions

Outdoor Air Condition: Temperature range -10 ℃ to 40 ℃, relative humidity 85% or less.
Indoor Air Condition: Temperature range -10 ℃ to 40 ℃, relative humidity 85% or less.
Installation Environment: The indoor air refers to air in a living room with an air conditioner. Do not use in refrigerated warehouses or places with sharp temperature changes.
Frost and Dew Prevention: To prevent dew or frost inside the unit, ensure low-temperature air is heated to a point below the saturation curve before entering the unit.
Filter Operation: The unit must operate with a filter. Without a filter, the heat exchange core will clog, affecting performance and potentially causing malfunction.
Winter Operation: Do not use "Normal ventilation" mode during winter in a heated room, as condensation will form inside the supply air outlet.
Placement: Do not place pets or plants directly exposed to supply or exhaust air outlets.
Installation Height: For safety, the product should be installed at least 2.3 m above ground level.
Duct Installation: Avoid excessive bending, multiple bends, or reduction in diameter of connecting ducts, as this may cause unexpected operation.
Outdoor Duct Insulation: Insulate outdoor ducts (including the indoor side) to prevent condensation and property damage.
High Temperature/Humidity Ceilings: If the ceiling is subject to high temperature and humidity, install a ventilator on the ceiling to prevent fire and electric leakage.
Temperature Difference: Do not install the product where indoor temperature is significantly lower than outdoor temperature, as this may cause condensation, electric shock, and malfunction.

Maintenance Features

General Safety

Disassembly: Do not disassemble the product for repair or reconstruction. Contact the dealer for repairs.
Water Contact: Do not allow the product to come into contact with water or pour water on it, especially electrical parts like the motor and switches, to prevent short circuits or electric shocks.
Wet Hands: Do not turn the switch on/off with wet hands to prevent electric shock.
Combustible Gas Leaks: Do not turn the switch on/off when there are combustible gas leaks, as sparks from the switch may cause a gas explosion.
Professional Repair: Entrust repair (excluding filter maintenance) to the dealer or similarly qualified personnel.
Obstacles: Do not place obstacles near air intake or discharge openings to prevent injury.
Access Equipment: Ensure access equipment is firmly secured during maintenance to prevent physical injury.
All-Pole Switch: Shut off the all-pole switch before maintenance to prevent electric shock and injury.
Inclination: Do not incline the product during disassembly, as accumulated water may leak. Contact an authorized dealer for repair.
Combustible Spray: Do not use the product near combustible sprays to prevent fire.
Objects on Product: Do not place objects on the product. Leaking liquids or foreign matter can cause electric shock or damage the impeller.

Filter Maintenance

Regular Cleaning: Clean filters regularly. Excessive dirt or dust on the filter can cause indoor hypoxia.
Filter Identifier: Pay attention to the filter identifier when cleaning or replacing to maintain purification efficiency.
Cleaning Frequency: Outdoor filters should be cleaned about once a month and replaced every four to six months. RA filters should be cleaned about once a month.
Cleaning Method: Clean the product only with neutral detergents. Do not use benzene, alkaline/alkalescent detergents, thinner, kerosene, alcohol, anti-mildew detergents, solvents, or metallic brushes, as they may corrode or scratch the product.
Eye Protection: Protect eyes when cleaning or replacing filters, as dust may enter eyes. Wear eye protection if necessary.
Dust Diffusion: Clean filters outdoors or use a vacuum cleaner that can remove PM2.5 particles to prevent dust diffusion indoors.
Filter Life: The service life of the filter is based on 10 hours of operation per day. Air volume and purification efficiency may decrease over time. Replace outdoor filters if the side with arrows becomes black.
Harsh Environments: In dusty environments, increase the frequency of cleaning or replacing outdoor filters to maintain performance.
Outdoor Filter Cleaning: Do not wash outdoor filters with water, as this may damage them and degrade performance.
Filter Installation: Insert cleaned or new outdoor filters along the guide rail, ensuring the arrow points to the heat exchange core. Pay attention to installation directions to maintain purification efficiency.
Inspection Cover: Fix the inspection cover by reversing the removal steps.

Long-Term Storage

If the product is not used for a long time, shut off the all-pole switch. Accumulated dust on the switch can heat up and cause fire.
If the product is no longer required, remove it to prevent injuries from falling.

Troubleshooting

No Start/No Air Blows: If the product does not start or blow air, check if the all-pole switch is "OFF," if there's a power failure, or if the filter is clogged. Also, check the wiring, duct leakage/blockage, and suspension bracket tightness.
Noise: If the impeller operates abnormally, contact the dealer. Check if the adapter and duct connections are firm.
Mode Shifting Pause: It is normal for the product to stop briefly during operating mode shifts to allow the damper to move smoothly.

Supplied Accessories

Installation and operating instructions (1)
Model label (1)

Optional Accessories

Remote Control: Model No.: FV-SWGR1
Outdoor Filters:
- FV-15ZY1: FV-FP15ZY1
- FV-25ZY1: FV-FP25ZY1
- FV-35ZY1: FV-FP35ZY1
- FV-50ZY1: FV-FP50ZY1
- FV-65ZY1: FV-FP65ZY1
- FV-80ZY1: FV-FP80ZY1
- FV-1HZY1*: FV-FP1KZY1 (two sets used)
- FV-1KZY1: FV-FP1KZY1
- FV-2KZY1*: FV-FP1KZY1 (two sets used)