Same idea as our Cyclovac guide: whether you're comparing Mvac or Duovac power units before buying, tracking down a part number for one you already own, or speccing out a commercial installation with our Cyclovac HD line, here's every active model in one place — motor, circuit board, bags/filters, and warranty. Tap any unit to expand its full parts breakdown.
Mvac Active Lineup
Seven units make up Mvac's current line, from the compact M45 up to the M95 and Tytan.
M45 (AMVAC45A) — Parts 5yr 100% + 5yr 50% / Labor 3yr
M47 (AMVAC47SA) — 650 AW — Parts 10yr / Labor 5yr
Motor: Ametek 122437, thru-flow 120V, 650AW — FM24370001
Circuit board: 15A 120V, low-voltage connector + LED — ELECIR901V
Power cord: 120V — ELECOR01
Carbon brushes: TMCARB15 (pair)
Motor gasket: 5.5" OD, 3.5" ID — GASCUT20R
Bags: compact heavy-duty electrostatic, 3-pack — TDSAC91M
Filter: tambourine HEPA-type — TDFITE74V
M50 (AMVAC50A) — dual-turbine, 650 AW — Parts 10yr / Labor 5yr
Motor: Ametek 122437, thru-flow, dual-turbine, 120V, 650AW — FM24370001
Circuit board: 15A 120V, low-voltage connector + LED — ELECIR901V
Power cord: 120V
Carbon brushes: TMCARB15 (pair)
Motor gasket: 5.5" OD, 3.5" ID, 7/8" thick — GASCUT20R
Bag & filter: compact heavy-duty electrostatic bag + round cyclofilter, 3-pack — TDSAC91M
M80 (AMVAC80A) — Parts 10yr / Labor 5yr
Motor: Ametek 122264, thru-flow 120V — FM22640001
Circuit board: 15A 120V, low-voltage connector + LED — ELECIR901V
Power cord: 120V — ELECOR01
Carbon brush: TMCARB15
Motor gasket: 5.5" OD, 3.5" ID, 7/8" thick — GASCUT20R
Bags: heavy duty electrostatic, 3-notch, 3-pack — TDSAC93M
Filter: self-cleaning HEPA drum filter — TDFILT64V
Have the "M80 Gamma" variant with an electric on/off hose handle? See the Gamma-specific note under Troubleshooting below.
M95 (AMVAC95A) — 2-turbine bypass — Parts 10yr / Labor 5yr
Motor: Ametek 122483, bypass 120V, 2-turbine, 4.25" aluminum outlet tube — FM24832702
Circuit board: 15A 120V, low-voltage connector + LED — ELECIR901V
Power cord: 120V — ELECOR01
Carbon brushes: TMCARB27 (pair)
Motor gasket: 7.25" OD, 3.5" ID, 1.25" thick — GASCUT06
Bags: heavy-duty electrostatic, notched, 3-pack — TDSAC93M
Filter: self-cleaning HEPA — TDFILT65V
Tytan (AMVACTYTANA) — Parts 5yr 100% + 5yr 50% / Labor 3yr
M41 (AMVAC41A) — Parts 5yr 100% + 5yr 50% / Labor 3yr
Motor: Domel 463.3.606-2, thru-flow 120V — FMTFD60005 (datasheet under TMTFD600)
Circuit board: 15A 120V, low-voltage connector + LED — ELECIR901V
Power cord: 120V — ELECOR01
Bags: compact electrostatic, 3-tooth, 3-pack, 3.6gal/16L — TDSAC91M
Filter: round white filter, 11.25"
Mvac Warranty at a Glance
| Model | Parts | Labor |
|---|---|---|
| M45 | 5yr 100% + 5yr 50% | 3yr |
| M47 | 10yr | 5yr |
| M50 | 10yr | 5yr |
| M80 | 10yr | 5yr |
| M95 | 10yr | 5yr |
| Tytan | 5yr 100% + 5yr 50% | 3yr |
| M41 | 5yr 100% + 5yr 50% | 3yr |
Duovac Active Lineup
Duovac's current line runs four models, sharing a common bag/filter and replacement-parts platform across all of them.
Duovac Air10 (ADUOAIR10A) — Parts 10yr / Labor 2yr
Motor: Ametek 122437, thru-flow 120V — FM24370001
Circuit board: 15A 120V — ELECIR901V
Power cord: 120V — ELECOR01
Motor gasket: GASCUT20R
Bags: poly filtration — NUFILTRE189
Permanent filter: 7"×8" — NUFILTRE207
Duovac Star (ADUOSTARA) — Parts 10yr / Labor 2yr
Motor: Ametek 122264, thru-flow 120V — FM22640001
Circuit board: 15A 120V — ELECIR901V
Power cord: 120V — ELECOR01
Motor gasket: GASCUT20R
Bags: poly filtration — NUFILTRE196DV
Permanent filter: 7"×12" — NUFILTRE208
Duovac Air50 (ADUOAIR50A) — Parts 10yr / Labor 2yr
Motor: Ametek 122483-27, bypass 120V — FM24832702
Circuit board: 15A 120V — ELECIR901V
Power cord: 120V — ELECOR01
Motor gasket: GASCUT06R
Bags: poly filtration — NUFILTRE196DV
Permanent filter: 7"×12" — NUFILTRE208
Duovac Distinction (ADUODISTINCA) — dual-motor — Parts 10yr / Labor 2yr
Duovac's top-of-line unit, running a bypass motor plus a separate peripheral motor.
Bypass motor: 6600-12T, 120V — FMCY2001T4
Peripheral motor: 6600-12, 120V — FMCY200101
Circuit board: 15A 120V — ELECIR901V
Power cord: 120V — ELECOR01
Motor gaskets: GASCUT20R and GASCUT28R
Bags: poly filtration — NUFILTRE196DV
Permanent filter: 7"×12" — NUFILTRE208
All four Duovac units share the same replacement-parts platform: air inlet kit with rivets (REPINTKG4), galvanized wall bracket (MSUPP14Z), canister gasket (GASLIN716), and muffler kit (TENSMUF7) — only the aluminum canister part number varies slightly by model (FBARIALUDU12 for Air10, FBARIALUDU16 for Star/Air50, FBARI16S01 for Distinction).
Duovac Warranty at a Glance
| Model | Parts | Labor |
|---|---|---|
| Air10 | 10yr | 2yr |
| Star | 10yr | 2yr |
| Air50 | 10yr | 2yr |
| Distinction | 10yr | 2yr |
Heavy-Duty Commercial Units (Cyclovac HD Line)
Alongside Mvac and Duovac, we also carry Cyclovac's HD Commercial line for heavier-duty and commercial installations: the single-motor HD925, and the dual-motor HD7525 main-and-satellite system for larger buildings.
HD925 (ACYHD925A) — HD Commercial, 625 AW — Parts 15yr/750h / Labor 5yr
Motor: Ametek 122474, 120V — FM24742702
Circuit board: 15A 120V, low-voltage connector + LED — ELECIR901V
Power cord: 120V — ELECOR01
Carbon brushes: TMCARB27
Motor gasket: GASCUT06
Bags: TDSAC93C, or TDSAC83C/TDSAC84C with carbon filter
Filters: TDFILHEC2 (carbon), TDFILT65V (self-cleaning HEPA-type)
Rated 625 airwatts and 161.5" sealed water lift (116 CFM), on a 2-stage 120V motor drawing up to 14.5A. Warranty: 15 years on parts, lifetime on the unit body.
HD7525 (ACYHD7525A) — main + satellite, dual-motor 240V — Parts 15yr/750h / Labor 5yr
Dual-motor unit: a main power unit plus a separate satellite unit, both 240V.
Main motor: Ametek 122580-27, bypass 240V — FM25802702
Main board: 15A 240V — ELECIR905V
Main power cord: 240V — ELECOR951
Cord to satellite: 240V — ELECOR55B
Satellite motor: Ametek 122580-27, bypass 240V — FM25802701
Satellite adapter: 240V — ELECOR50
Carbon brushes / gasket: TMCARB27 / GASCUT06R
Bags & filters: TDSAC93C or TDSAC83C/TDSAC84C; TDFILHEC2, TDFILT65V
Heavy-Duty Warranty at a Glance
| Model | Parts | Labor |
|---|---|---|
| HD925 | 15yr or 750h | 5yr |
| HD7525 | 15yr or 750h | 5yr |
Mvac-Specific Notes
M80 Gamma: unit starts/stops on its own, or the handle stops responding
First, test with another new Gamma hose to rule out the hose itself as the cause.
If the handle and unit still won't connect, the display unit (ELELED61) needs replacing to restore communication between the handle and the main unit. No manual reset is required afterward — the connection re-establishes automatically once the part is swapped.
Connecting an ash collector
The ash collector's hose connects to a regular wall outlet on top of the collector — that starts the central vacuum. A second hose then connects to the outlet on the front of the collector to collect the ashes.
Not compatible with a Retraflex outlet — use a standard wall outlet only. Empty all collected ash within 72 hours.
Troubleshooting & Maintenance
Mvac, Duovac, and the Cyclovac HD line share the same electrical platform as the rest of Trovac's lineup, so the core troubleshooting steps are identical across brands. Tap the symptom that matches what you're seeing.
Vacuum will not stop
Hose improperly inserted: the tab on the hose needs to fit into the slots of the vacuum inlet. Reseat it so the hose switch engages correctly.
Defective on/off hose: if the unit keeps running with the switch off despite correct placement, have the hose checked by a service center.
Low-voltage wire connection: while the vacuum runs, disconnect the low-voltage wires. If it stops, the wire or connector is faulty — contact your installer or an authorized service center.
Stuck relay: the relay is stuck closed and needs to be replaced.
Vacuum will not start
Power connection: confirm the cord is in a dedicated, grounded outlet.
Low-voltage wire: verify the low-voltage wires are properly seated in the low-voltage inlet.
Faulty inlet: start the unit from different inlets to isolate which one is defective.
Unit breaker tripped: press the reset button. If it trips again shortly after, contact an authorized service center.
House circuit breaker: reset the breaker at the panel and confirm the unit is on a dedicated, grounded circuit.
Defective on/off hose: rotate the hose a quarter turn in the inlet. If it starts, have the hose examined.
Decrease in suction strength
Motor guard screen: remove the filter and check the screen between the motor and filtration compartment for blockage. Keep the filter fully seated afterward.
Open inlet: close all inlets not currently in use.
Clogged exhaust: verify nothing is blocking the exhaust.
Blocked hose: plug the handle end of the hose into the inlet to reverse airflow through it, covering the gap around the handle — this clears most hose blockages.
Obstruction in piping: disconnect the unit from the piping at its air intake, start it via a hose in an inlet, and hand-test suction directly at the intake. Normal suction there points to a blockage downstream in the piping — abnormal points to the unit itself.
Hybrid unit without a bag: using a hybrid unit with or without a bag does not affect suction power.
Reset & motor maintenance
Nuisance reset (motor cycles on/off): check the motor's amperage first. Normal amperage points to an oversensitive reset needing replacement; abnormal amperage points to the motor.
Dual-motor units (like the Duovac Distinction): disconnect the connector wire between the two motors and test each one individually to isolate the fault.
Amperage maintenance
Never install a 20A reset in a unit certified for 15A — the cord is only rated for 15A and will burn out under the higher load. Always match the reset to the unit's certified amperage.
Testing motor amperage: open the unit's cover and take the reading directly on one of the motor wires.
Can't find your model here, or need a part number confirmed? Reach out to our team — we carry parts and service support for the Mvac, Duovac, and Cyclovac HD lineups.
Covers Mvac's active lineup (M45, M47, M50, M80, M95, Tytan, M41), Duovac's active lineup (Air10, Star, Air50, Distinction), and Cyclovac's HD Commercial line (HD925, HD7525) — regional-exclusive and discontinued models aren't included. Performance figures (airwatts, water lift, CFM) mostly live in each brand's separate spec-sheet PDF and aren't repeated here except where stated directly on a model's own page (as with the HD925 above); this guide focuses on parts and warranty terms for ownership and service.
