Heatpump: time to speed up fan?

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Aredwood

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#1993045 10-Apr-2018 23:19

As said above, the heatpump is just heating its heat exchange coils in the indoor unit first. Simply so when the fan switches on, it immediately blows out hot air.

Lots of flued gas heaters do exactly the same thing.

Goosey

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#1993068 11-Apr-2018 07:14

Remember, go "heat" or "cool", not "auto". This what Ive always been told by various installers.

Makes sense, you either want to heat or cool, not both (via Auto, which will make the unit work harder and longer).

Fred99

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#1994183 11-Apr-2018 11:04

Both Daikin heat pumps we installed last year have a "powerful" mode button on the remotes (on a different place on each remote - duh). I think the idea is that it overrides any settings that may slow down the initial heating (like quiet, night, sensor/comfort, or radiant mode), and boosts the fan speed to maximum. It's on a timer, and reverts to the previous user setting after 10 minutes or so. Make a bit of a din when using this mode, but they do pump out and distribute hot (or cold) air pretty fast.

neb

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#1994208 11-Apr-2018 11:41

Fred99:
Both Daikin heat pumps we installed last year have a "powerful" mode button on the remotes (on a different place on each remote - duh).

Why do they let engineers rather than UX people design these remotes? My Mitsubishi has four heat/cooling settings, denoted by a circle, a circle, a circle, and a circle. Which cretin decided that all four capabilities of the system should be set by visually nearly identical, and in any case completely unintuitive, pre-sumerian pictographic representations?

Fred99

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#1994238 11-Apr-2018 12:13

neb:
Fred99:

Both Daikin heat pumps we installed last year have a "powerful" mode button on the remotes (on a different place on each remote - duh).

Why do they let engineers rather than UX people design these remotes? My Mitsubishi has four heat/cooling settings, denoted by a circle, a circle, a circle, and a circle. Which cretin decided that all four capabilities of the system should be set by visually nearly identical, and in any case completely unintuitive, pre-sumerian pictographic representations?

To be fair, one is floor mounted with a "radiant" (fanless) mode and no automated side to side swing mode, the other wall mounted with a PIR sensor arrangement so you can set it to not blow air toward people when swing is enabled, but it's still annoying how the button positions differ.

jamesrt

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#1994248 11-Apr-2018 12:45

neb: Why do they let engineers rather than UX people design these remotes? My Mitsubishi has four heat/cooling settings, denoted by a circle, a circle, a circle, and a circle. Which cretin decided that all four capabilities of the system should be set by visually nearly identical, and in any case completely unintuitive, pre-sumerian pictographic representations?

This; wanted to turn on our heatpump last night; couldn't tell the difference between the snowflake and the sunshine symbol; then had a discussion with SWMBO over the appropriate icon to use - her rationale was the snowflake should mean that "gosh it's cold outside, please make my house warmer"...

Why not just use words - "heat" and "cool" ? Sigh...

MikeAqua

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#1994263 11-Apr-2018 13:59

Aredwood: As said above, the heatpump is just heating its heat exchange coils in the indoor unit first. Simply so when the fan switches on, it immediately blows out hot air.

Lots of flued gas heaters do exactly the same thing.

And politicians.

Seriously though ....

We have a 7kW Mitsi with 'hypercore' in Nelson and it is normally up and running within 1 minute even on a frosty morning (-1*C).

I put a larger one on the rental property in Blenheim. I'm told it does the same on colder mornings (-5*C).

Mike

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