Truck Stock: HVAC Service Truck Checklist

Tons	Dual-run cap	Contactor	Lineset
1.5	25/5 µF · 440V	1-pole 30A	3/4" suction · 3/8" liquid
2	30/5 µF · 440V	1-pole 30A	3/4" suction · 3/8" liquid
2.5	35/5 µF · 440V	1-pole 30A	7/8" suction · 3/8" liquid
3	40/5 µF · 440V	1-pole 30A	7/8" suction · 3/8" liquid
3.5	45/5 µF · 440V	1-pole 30A (2-pole on heat pumps)	7/8" suction · 3/8" liquid
4	50/5 µF · 440V	2-pole 30–40A	1-1/8" suction · 3/8" liquid
5	60/7.5 µF · 440V	2-pole 40A	1-1/8" suction · 3/8" liquid

Capacitors

0/11

The most-replaced part in the trade. Stock the whole 1.5-to-5-ton ladder — 25/5 through 60/7.5 — at 440V, and never substitute voltage down.

Dual-run 25/5 µF · 440V2The 1.5-ton class — garden apartments run on these.Dual-run 30/5 µF · 440V2The 2-ton class — the other multi-family workhorse.Dual-run 35/5 µF · 440V2The 2.5-ton class.Dual-run 40/5 µF · 440V2The 3-ton class.Dual-run 45/5 µF · 440V3The 3.5-ton class — goes fastest all summer.Dual-run 50/5 µF · 440V2The 4-ton class.Dual-run 60/7.5 µF · 440V15-ton machines and their bigger fan sections.Single fan caps: 5, 7.5, 10 µF · 440V2 eachFor splits with separate fan caps and universal motor swaps.Blower/oval caps: 7.5, 10, 15 µF · 370V+1 eachPSC blowers and older air handlers.Hard-start kits (universal, sized ranges)2For long linesets and tired compressors — a tool, not a cover-up for a wrong cap.Cap mounting straps + hardware4A zip-tied capacitor is a callback with extra steps.

Contactors & relays

0/6

Coils and contacts fail separately — stock the bodies that cover 90% of condensers.

Contactor · 1-pole 30A · 24V coil3The residential standard. Check coil voltage before you grab it.Contactor · 2-pole 30A · 24V coil2Contactor · 2-pole 40A · 24V coil2Bigger tonnage and most heat pumps.Universal fan relays (SPDT, 24V coil)2Heat sequencers (common universal)1Electric-heat air handlers — multi-family loves these.Time-delay relay / delay-on-break1Short-cycle protection where boards don’t provide it.

Motors & blades

0/7

Universals get the machine running TODAY; the exact OEM gets ordered for the follow-up when it matters.

Universal condenser fan motor · 1/4–1/3 HP multi-HP · 825 RPM1With the matching cap ranges on the shelf next to it. Match rotation and shaft.Universal condenser fan motor · 1/2 HP class1Route-dependentUniversal PSC blower motor · 115/208-230V1Multi-famFan coils, PTACs and closet air handlers still turn on PSC — the overnight no-air call in a hi-rise ends with this motor. Match HP, RPM, rotation and frame; its run cap lives on the caps shelf.Belly-band mount kit + adapter legs1Makes the universal actually fit the machine in front of you.Fan blade puller1The $20 tool that saves the $90 blade — never hammer a hub.Universal fan blades (common sweep/bore)1–2Route-dependentOnly if your routes run old-fleet condensers; blades really want to be matched.ECM/X13 modules & OEM blowers—Route-dependentORDER ITEMS — match by model/serial from the plate photos. Carrying random boards is how trucks fill with returns.

Refrigerant & circuit

0/9

The fleet is 410A; the installs are 454B. Both live on the truck now — with their paperwork.

R-410A cylinder1–2The service fleet for years to come.R-454B cylinder1A2L kitNote the different valve/fitting on A2L cylinders — your adapters live with it.Refrigerant log book / tracking sheets1Compliance is a truck-stock item. Every charge in, every recovery out.Nitrogen cylinder + regulator + flow meter1Purge while brazing, pressure tests, drain clearing. The flow meter is what makes purging real.Schrader cores + core tool + caps with seals20 + toolThe 40-cent part behind half the “it lost its charge over winter” calls.Locking refrigerant caps8Code in most places now — and the huffing deterrent that matters.Liquid-line filter-driers · 3/8" assortments (flare + sweat)3–4Every opened circuit gets a fresh drier. Non-negotiable after a burnout.Braze-on access tees / line-tap replacements4Replace every saddle valve you meet — they all weep eventually.TXVs / pistons—Route-dependentORDER ITEMS matched to the coil — but a piston size assortment earns its shelf on install-heavy trucks.

The A2L kit

0/6

R-454B changed the kit, not the physics. This shelf is what “rated for A2L” means in practice.

A2L-rated leak detector1A2L kitOn the job and ON during charge work. Your old heated-diode detector may not be rated — check it.A2L-rated recovery machine + hoses1A2L kitSpark-safe. The old recovery unit does not move flammable-class refrigerant, period.A2L recovery cylinder (marked)1A2L kitVentilation fan / blower for enclosed spaces1A2L kitMechanical rooms and closets get airflow before gauges on a suspected leak.SDS sheets binder (R-454B + everything carried)1A2L kitCompliance item; lives with the refrigerant log.A2L cylinder transport placards/straps per local rulesper rulesA2L kitRoute-dependent

Ductless kit

0/8

Mini splits changed the kit again: flares torqued to spec, vacuum proven in microns, charge set by weight. The A2L shelf handles the refrigerant; this shelf handles the fittings.

Torque wrench + flare crowfoot adapter set1 + setThe brazing shelf already commands it — torque flares to spec. This is the tool that makes the number real; the crowfoots reach the nut on a hung line set.Micron gauge1Vacuum is proven in microns at the system, not minutes on the pump. Pull, isolate, watch the decay — before any charge moves.Vacuum pump + fresh oil—Assumed on every truck already — rides here so the micron gauge is never alone. Change the oil often; a wet pump stalls the pull-down.5/16"-to-1/4" service-port adapters2Most ductless service ports are 5/16" SAE — the 1/4" hoses in the ducted kit don’t connect without these, and the job can’t start.Charging scale—Assumed kit: inverter machines charge by WEIGHT to the manufacturer’s line-length math, not by chasing subcooling. The scale is the gauge here.Forged flare nut assortment + flare caps1 boxRe-made flares get a fresh forged nut — reused brass work-hardens and cracks on a schedule. Caps go over every open flare the second the wrench stops.Bib wash kit / coil-cleaning bags1Route-dependentHead cleanings happen over finished walls and occupied bedrooms — the bib and bag route the rinse water out the door instead of down the drywall.Line-set flush kit1Route-dependentReuse an existing line set only per manufacturer guidance on POE/A2L systems — flush where the maker allows it, and their word defines clean.

Electrical

0/11

Fuses, wire, and the connectors that survive condensers. Breakers get MATCHED on site, never guessed.

Thermostats & controls

0/6

Two stats cover most walls: the simple one, and the heat-pump-capable one configured RIGHT.

Non-programmable stat · 1H/1C2The rental-unit and elderly-customer favorite: big numbers, no menus.Universal stat · 2H/2C heat-pump capable2Covers HP + two-stage. Configure the equipment menu at install — the wall wires prove nothing.Add-a-wire / C-wire adapter kits2For the smart-stat-no-common call you’ll get this week.Thermostat wall plates (large)3Covers the paint ghost from the giant 1998 stat. Homeowners remember this.Condensate float switches (inline + pan styles)4Wired IN the Y, tested by lifting. The ceiling’s only friend.Defrost boards / OEM controls—Route-dependentORDER ITEMS by model/serial — the plate photo habit pays here.

Condensate & drains

0/8

Water calls outnumber refrigerant calls. Be the truck that ends them in one visit.

3/4" PVC: pipe stick + elbows/tees/couplings/unions, primer + cement1 kitTrap kits + cleanout tees with plugs2Every trap gets a cleanout; future-you is the customer.Pan treatment tablets1 jarOn every maintenance and every drain call — the float switch’s vacation fund.CO2 drain gun (or nitrogen fitting) + cartridges1 + 12Connect at the cleanout by the pan and shoot OUT toward the termination — away from the pan, never back at it.Condensate pump (universal 120V)1With tubing and check valve.Clear vinyl tubing 3/8" & 1/2"10ft eachSecondary drain pans (common sizes) + floats1–2Multi-famMulti-family closets over finished ceilings — the pan IS the insurance.Wet vac (small) + attic bags1The drain call closer.

Filters & IAQ

0/5

Stock the commons; stock the PROPERTY’S sizes on property routes.

The properties’ standard sizescase eachMulti-famAsk the PM for the unit schedule once; carry cases forever. Cheapest goodwill in the trade.Media filters for maintained accounts (4–5")per routeRoute-dependentCoil cleaner: outdoor foaming + indoor no-rinse2 + 1No-rinse ONLY on evaps; the foaming stuff stays outside.Fin comb set1Evap pan & drain spray/treatment1

Brazing & lineset

0/8

Nitrogen flowing, right alloy, heat where it belongs — and everything to protect what’s around the joint.

Torch rig (air-acetylene or oxy) + strikers + tips1Leak-check YOUR OWN rig monthly. Torch bottles secured upright, always.15% silver-phos rods (Sil-Fos class)1 tubeCopper-to-copper, no flux needed.45% silver + flux5 sticksDissimilar metals — copper to brass/steel.Heat-block putty + wet rag supply1 jarTXV bulbs, service valves, painted walls — everything you braze NEAR matters.Sand cloth rolls + fitting brushes2 + setLineset insulation 3/4" & 7/8" + glue + tape6ft eachThe last six feet techs never re-cover is the sweating suction line in the ceiling.Flaring/swaging kit + Nylog gasket sealant1Torque flares to spec — finger-tight is a slow leak with a schedule.Copper caps/plugs assortment1 boxOpen lines get capped the second the tubing cutter stops.

Hardware & consumables

0/8

The boring shelf that decides whether the visit ends professionally.

Tapes: foil (UL-181), electrical (colors), Teflon, duct mastic + brushes1 kitFoil tape and mastic on ductwork; cloth duct tape is for gym bags.Zip screws 8×1/2 & 10×3/4 + magnetic drivers1 box eachPanel screws vanish into lawns. The customer sees the missing screws.Hanger strap + zip ties (regular + heavy UV-rated)1 roll + bagsEquipment pads/risers + leveling shims2 setsRoute-dependentAnti-vibration isolation pads1 setExterior caulk + low-expansion foam2 + 1The lineset penetration you sealed is the mouse that never moved in.Degreaser, glass cleaner, rags, trash bags1 kitLeave the closet cleaner than you found it — it photographs well on doorbell cameras.Batteries: AA/AAA (stats), 9V (meters + courtesy smoke-detector swaps)1 pack eachStat and meter batteries ride every truck; the 9V courtesy swap in multi-family units is remembered at renewal time.

Safety & PPE

0/10

The gear that gets the tech home — and the two items customers actually notice.

Multi-family kit

0/10

The property-route extras: access, notice, and the unit-turn bundle that makes PMs loyal.

Paperwork & truck office

0/6

The truck is also the office. The sheet you can’t find is the start-up that didn’t happen.

Start-up sheets (pad) — or the tablet that opens /startup1 padBoth stages proven, valve proven, safeties tested, signed. The guide is the sheet.Invoices / estimates / card reader1 setBusiness cards + review cards (ask for the HONEST review)1 stackNever stars-for-perks. The Customer Side board covers why.EPA card copy, license copies, insurance certs1 folderCharging charts / PT cards (410A + 454B) + superheat calculator1 setThe nameplate beats every table — but the table rides along anyway.Oil-dry / spill kit1Route-dependent

Truck stock

The 1.5–5 ton quick checklist

Capacitors

Contactors & relays

Motors & blades

Refrigerant & circuit

The A2L kit

Ductless kit

Electrical

Thermostats & controls

Condensate & drains

Filters & IAQ

Brazing & lineset

Hardware & consumables

Safety & PPE

Multi-family kit

Paperwork & truck office