Condo install rescoped: an estate condenser placement rule

The management office at a Clementi condo returned the installation application with one condition attached. The outdoor unit could not sit where the quote had drawn it. That single line moved the pipe route, the drain fall and the material list.

By Team Snowflake | Reviewed 25 Jul 2026

Case summary

Daikin Multi-split2 years oldCondoClementi, Singapore

Concern: The signed quote assumed the outdoor unit could hang on the balcony wall, and that assumption set the pipe length, the bracket type and the quoted day rate.
Found: The estate permits outdoor units only on a designated condenser ledge. That position sits further from the indoor heads, so the pipe path lengthens and gains a core drill
Key check: Read the estate fit-out conditions and confirmed the approved condenser position before any material was ordered
Result: Estate inspection passed on the first check with no rework. Measured cooling at both indoor heads matched the design figure despite the longer run. No variation order was raised once work began, because the extra scope was priced before the first hole was drilled.

What we were told

The property was a new condo handover with an installation quote already signed. The management office required a fit-out application before any drilling could start. That application came back approved, with a written condition attached to where the outdoor unit was allowed to sit. Nothing had been ordered yet.

What we checked

An approval condition is a design input rather than paperwork, so the route was measured again from the permitted ledge outward. We walked the pipe path, checked the drain fall and marked the drilling points. What moves on the application also moves what the system has to do once it runs.

The permitted ledge sat at the far end of the service yard, well past the balcony wall shown on the quote.
Re-routing to that ledge lengthened the pipe path substantially and crossed two structural walls.
Drain fall from the living room head still held on the new route, but with far less margin than before.
One additional core drill was needed where the run crosses into the service yard.

What we found

The estate allows outdoor units only on a shared condenser ledge, set back from the balcony line so the elevation stays uniform. Nobody had read that rule before pricing. Moving the unit to the permitted position lengthens the refrigerant run and adds a drilled crossing, so the gas quantity, the bracket specification and the labour all had to be worked out again. The condition surfaced before work started, which is the only reason it never became a variation.

What fixed it

We repriced the install against the approved position instead of the drawing. Longer runs carry a charge adjustment, and that adjustment was worked out from the route we walked rather than a rule of thumb. Insulation was specified continuously across the whole path, including the exposed section crossing the service yard. Drilling was booked inside the hours the estate permits, which keeps the approval valid and avoids a stop-work notice.

Outcome

Estate inspection passed on the first check with no rework. Measured cooling at both indoor heads matched the design figure despite the longer run. No variation order was raised once work began, because the extra scope was priced before the first hole was drilled.

What this case teaches us

Estate rules decide where an outdoor unit goes, and that decides the price

A quote written before estate approval is a guess. The permitted position can move the entire pipe route.
Longer pipe runs need more gas and full insulation. Same job, same day rate is the wrong comparison.
Get the placement condition in writing before material is ordered, so it never turns into a variation on site.

Questions this case answers

Can my condo management tell me where the outdoor unit must go?

Yes, and many estates do exactly that. This Clementi condo permits outdoor units only on a shared condenser ledge, which keeps the building elevation looking the same from outside. The fit-out application came back approved with that condition written into it. Where the unit is allowed to sit then decides the pipe route.

Should an installer price the job before the estate approves the condenser position?

A quote written before approval is a guess. The signed price here assumed the outdoor unit could hang on the balcony wall, which fixed the pipe length, the bracket type and the day rate. The permitted ledge sat at the far end of the service yard instead, so the whole route and the material list had to be redone.

Does extra scope have to become a variation order once work starts?

Only when nobody checks first. The condition surfaced while nothing had been ordered here, so the extra pipe, the bracket change and the labour were all priced into the job before work started. No variation was raised once drilling began. Put the placement condition in writing and it never becomes one.

Will a longer pipe run affect how well the aircon cools?

It can, which is why the charge has to be worked out from the route rather than a table value. Here the run to the permitted ledge was measured on site and the gas adjusted to suit, with insulation continuous across the exposed section in the service yard. Measured cooling at both indoor heads matched the design figure.

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