Hi, have just bought a CM Zone Pack (1 x CM67Z and the boiler relay), and an extra pack of 4 x HR80UKs
I already have a CM927 and DBR91 combo controlling my boiler.
1....I'm thinking I may be able to reuse the CM927 to act as the temperature sensor in a zone in which 2 of the radiators are in cabinets (my large dining room), and the 3rd radiator (uncased) is at the bottom of an open staircase tha leads into the same dining room. Is that a sensible use of the CM927? i presume it will be the temperature sensor for all 3 radiators in such a scenario? Or can I have i such that the 3rd radiator's HR80UK uses it's own temp sensor?
2...The CM67Z (i believe) can also act as temperature sensor? The kitchen has 1 radiator exposed, and 1 hidden behind the sink, and vents through the workop (not very efficient I know, but it's what I inherited when I bought the house). So i presume i could use the CM67Z sensor to sense the temperature in the kitchen zone? Same question as before - will the exposed radiator HR80UK be able to verify it's own temperature in such a scenario?
3....I have an area - large hall, staircase and landing - that has 4 rads. As I don't have enough HR80UKs for all the house rads, I thought I could run this area with another CM67Z (if I buy one) to monitor the temperature, and run conventional TRVs in this area until such time as I get more HR8OUKs. I'm thinking if it gets cold enough, the CM67Z in this are will kick the boiler in and warm the area up, while if it is up to temperature, but a different zone is causing the boiler and pump to run hot water round the circuit, the TRVs will limit the heat output in this area to their setpoint?
4..... I understand the DBR91 is newer, so presume I'd continue to use that, over the one that comes in the CM Zone pack (HC60 or something?).
5.... I understand I can parallel boiler relays in future if I need to. But does that not run a risk of running the boiler for more cycles than is set up in the controls?
Grateful for any advice as new to this setup, and have found the threads on here very useful in my research, so have joined today!
Simon
I already have a CM927 and DBR91 combo controlling my boiler.
1....I'm thinking I may be able to reuse the CM927 to act as the temperature sensor in a zone in which 2 of the radiators are in cabinets (my large dining room), and the 3rd radiator (uncased) is at the bottom of an open staircase tha leads into the same dining room. Is that a sensible use of the CM927? i presume it will be the temperature sensor for all 3 radiators in such a scenario? Or can I have i such that the 3rd radiator's HR80UK uses it's own temp sensor?
2...The CM67Z (i believe) can also act as temperature sensor? The kitchen has 1 radiator exposed, and 1 hidden behind the sink, and vents through the workop (not very efficient I know, but it's what I inherited when I bought the house). So i presume i could use the CM67Z sensor to sense the temperature in the kitchen zone? Same question as before - will the exposed radiator HR80UK be able to verify it's own temperature in such a scenario?
3....I have an area - large hall, staircase and landing - that has 4 rads. As I don't have enough HR80UKs for all the house rads, I thought I could run this area with another CM67Z (if I buy one) to monitor the temperature, and run conventional TRVs in this area until such time as I get more HR8OUKs. I'm thinking if it gets cold enough, the CM67Z in this are will kick the boiler in and warm the area up, while if it is up to temperature, but a different zone is causing the boiler and pump to run hot water round the circuit, the TRVs will limit the heat output in this area to their setpoint?
4..... I understand the DBR91 is newer, so presume I'd continue to use that, over the one that comes in the CM Zone pack (HC60 or something?).
5.... I understand I can parallel boiler relays in future if I need to. But does that not run a risk of running the boiler for more cycles than is set up in the controls?
Grateful for any advice as new to this setup, and have found the threads on here very useful in my research, so have joined today!
Simon
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