Ecodan - Legionella Operation Time and Target Temperature
Posted by: @toodlesBut it may be necessary to ‘clear up’ behind the installer!
The need to clear up behind the installer is dictated by two further factors.
1: If he's not fitted a bend-free route leading away from the tundish with a pipe of adequate diameter, then the test of the release valve will have sprayed hot water all around the room.
The air-intake ports on the sides of the tundish are equally capable of giving the floor a 'hot wash'.
2: With due regard to the subject of this discussion topic, if the anti-legionella cycle hasn't been properly commissioned, then the bacteria will also have been sprayed into the air...
... in which case the state of his soil pipe is the least of his worries.
Save energy... recycle electrons!
Below the Tundish the pipe goes to the exterior, the 2nd pic shows what is above.
They were a bit miserly with insulation, I have added quite a bit myself.
I'm going to add some over the hole where the temperature probe is as I can feel warmth when I put my finger in, there is another as well near the top of the tank. Thank you for the heads up.
I emailed Mitsubishi on Sunday about the Legionella cycle, haven't heard back yet though, will try calling them when I get chance. Another thought is to set the cycle temp to 59 instead of 61 and hopefully it will end the program when it reaches 59.5.
Mitsubishi Ecodan 8.5kWh
4.4kW Solar PV
5.2 kWh Battery Storage
1983 build, 300mm loft insulation, cavity wall insulation (beads)
That tundish looks ok.
They were more than just "a bit miserly" with the pipe insulation.
They've breached the regulations.
The rule is that all pipes should be insulated within a metre of a hot water tank.
It doesn't matter whether the pipe is meant to carrying cold-input, or if it's empty, such as the pressure release system.
The pipe still needs insulating because the copper 'sucks' energy out of the tank.
Save energy... recycle electrons!
@transparent Oh right, I'll get all of that insulated as well. They actually left quite a lot in the rubbish pile, which I kept. Out of interest, all of the pipe that goes from the tundish to the ground is copper which seems a bit wasteful, should it not be plastic instead? Thankfully no one has stolen it from the side of the house.
Mitsubishi Ecodan 8.5kWh
4.4kW Solar PV
5.2 kWh Battery Storage
1983 build, 300mm loft insulation, cavity wall insulation (beads)
The pressure release pipe to the outside is usually in copper.
The crucial thing to note is that it shouldn't go through several right-angle bends.
Either it needs to be bends formed in the pipe itself, or else uses swept-elbow fittings.
Save energy... recycle electrons!
- 26 Forums
- 2,112 Topics
- 46.4 K Posts
- 32 Online
- 3,408 Members
Join Us!
Latest Posts
-
RE: No-code, plug-and-play monitoring for your heat pump
I think I have found “The One!” Waveshare ESP32-S3-POE-...
By Grantmethestrength , 29 minutes ago
-
RE: Buffers, hot water and cooling
@prunus, @jamespa is correct, but removing the buffer ...
By Brendon Uys , 5 hours ago
-
@downfield and @toddles, this isn’t in the settings cur...
By Mars , 23 hours ago
-
RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 1 day ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 1 day ago
-
RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 1 day ago
-
RE: Wood burner with ASHP - direct air?
@sune is ideal to answer this, but I think he's on vaca...
By Mars , 2 days ago
-
RE: Say hello and introduce yourself
Hi @topher - you might be interested to see this very r...
By Transparent , 2 days ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Ebac 5kw - Monobloc R32. Developed and made in UK - Mit...
By marcinwloch69@gmail.com , 3 days ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 3 days ago
-
RE: BUS Grant: removal of all other fossil fuel heat sources
@rikiarn - just have a think as to how much it will cos...
By Transparent , 4 days ago
-
Don't do much digging around.That's best left to the pr...
By Transparent , 4 days ago
-
Hi all, I was wondering if anyone had an idea of how th...
By Wh0am3ye , 4 days ago
-
RE: EBAC re-entering the ASHP market in 2023
@toodles confirm i have Ebac 5kw ASAP + homely and it w...
By marcinwloch69@gmail.com , 4 days ago
-
RE: Compute heat loss from energy used
@jamespa Ebac must be similar to Mitsubishi as they buy...
By marcinwloch69@gmail.com , 4 days ago
-
@pie_eater I have been thinking of adding cooling to my...
By TechnoGeek , 6 days ago
-
RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice
Agree, but you may have a hard time convincing them, as...
By JamesPa , 1 week ago
-
RE: Seal the Deal: Don't Let Your Heat Pump Leak Energy
Hi - fyi - there's a dead image link in the 'Optimal In...
By seatonian , 1 week ago
-
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
@chandykris Horses and beggars…. 😉 Toodles.
By Toodles , 1 week ago
-
RE: Cleaning up after gas meter removed
@agentgeorge Likewise in the loft space; we have 300mm ...
By Toodles , 1 week ago