HVAC outdoor-unit installation parts · Pads / Brackets / Duct covers / Feet · Custom to drawing 中文EnglishEspañol
LIANZHANLIANZHAN · HVAC PARTS
Installation parts for outdoor unitsVibration · Load · Routing · Protection
Hotline
+86 133 7847 4583
shuer516788@gmail.com
HVAC INSTALLATION PARTS

Mount it right,
then it runs quiet.

Vibration pads, wall brackets, duct covers and support feet — the four things that decide how an outdoor unit behaves. We supply them as one set. 34 standard models in stock, tooling to your drawing, mixed loading in a 20′ container.

34
Standard models
5
Product lines
100%
Sample before batch
20'
Mixed container
One-set supply
Vibration · Load · Routing · ProtectionFIG.01
WHY US

Why buy the set from us

We do not spread wide — we go deep on the four parts an outdoor unit needs
01

One-set supply

Four categories from one supplier: fewer purchase orders, no mismatched specs

02

Full range

34 standard models, from 1 HP residential units to commercial multi-split

03

Built to drawing

Tooling from your drawing or sample; production starts after sample approval

04

Container-ready

Mixed models, export packing, complete loading data and shipping marks

PRODUCTS

Product catalog

34 models · full spec tables · custom to drawing
Open full catalog →
PROCESS

From enquiry to shipment

Standard models: quote by model number. Custom: six steps below
01

Requirements

Unit model, load, wall type

02

Selection & quote

By bore spacing and load

03

Drawing / tooling

From your drawing or sample

04

Sample approval

Test fit, then freeze dimensions

05

Production

Built to the approved sample

06

Shipping & service

Mixed containers, replenishment

ABOUT

About us

Learn more →

LIANZHAN manufactures and supplies installation parts for HVAC outdoor units.

We believe a reliable installation comes down to four things: vibration is isolated, load is carried properly, refrigerant and drain lines are protected, and the details are finished. So the range is not a loose box of parts — it is built around those four points: pads for vibration, brackets and feet for load, duct covers for routing and sun protection, sleeve covers and clips to finish.

Our customers are HVAC contractors, regional distributors and equipment makers. Their three standing requirements are simple: the model must match, the lead time must hold, and the container must ship complete. Those are also our three internal KPIs.

01Selection supportSend bore spacing and unit weight; we return model and load advice
02Custom toolingDrawing or sample; we measure, draw, then build tooling
03Batch consistencyProcess parameters frozen after sample approval
04Delivery as a setMixed models, export packing, complete loading data
34
Standard models
5
Product lines
100%
Sample before batch
20'
Mixed loading
CASES

Applications

Residential fix · Commercial replacement · Export container
View all →
Residential · Vibration fix

Low-frequency noise from a high-rise outdoor unit

Situation

The unit hung on the bedroom wall. The owner reported a constant low hum at night; the original bracket was thin angle steel with no elastic separation between unit and bracket.

What we did

Switched to thicker rubber pads with full contact under the feet, and added diagonal bracing to reduce bracket vibration.

Result

Structure-borne noise dropped noticeably; re-measurement met the building requirements and the same detail was applied to identical units in the block.

Commercial · Bracket replacement

Roof bracket replacement across a retail complex

Situation

Brackets for the multi-split units had been in service for years: coating corroding, some anchors loose. Replacement had to be phased without closing the mall.

What we did

Re-selected hot-dip galvanised brackets by unit weight, added 100 mm feet to solve standing water, delivered in three batches with night work.

Result

All three batches finished inside the window with no impact on trading; maintenance now follows a batch ledger.

Export · Container supply

Mixed-model container for an overseas distributor

Situation

A distributor needed several models in one shipment, but each model had its own MOQ, which would have left half a container empty.

What we did

Combined models to reach container volume, printed buyer marks, supplied packing list and load plan.

Result

One 20′ container shipped with five models and complete documents; the mix is now a quarterly repeat order.

FAQ

Frequently asked

Selection, tooling and installation
All 7 questions →
Q01Does an outdoor unit really need vibration pads?+
A

Not always. When the unit hangs on a rigid bracket with a bedroom on the other side of that wall, vibration travels through the structure — pads make an audible difference there.

On a separate base or a roof, check first whether there is an actual noise complaint before adding them.

Q02How do I choose the right pad model?+
A

Measure the bolt spacing on the unit feet, then check the unit weight. Matching both is the reliable route.

1–1.5 HP residential units usually take the small single- or double-hole sizes; 3 HP and above, or commercial units, need the thicker high-load models. The A / B / C dimensions in the spec table map directly to the foot spacing.

Q03How do I judge bracket load capacity?+
A

Size the bracket at twice the unit's total weight or more, and check the wall material.

Solid brick or concrete takes wall brackets; lightweight walls or insulated facades are better served by floor feet that transfer load straight to the slab.

Q04What are the duct covers made of? Can the colour change?+
A

Current ducts are PVC, ivory white as standard, which matches most residential units.

Bulk orders can be produced to a colour card — send quantity and colour code and we confirm MOQ and lead time.