Difference between revisions of "Heating"

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(Created page with "== Heating == Motor seems dead, mentar took it apart and connected it to the mains to make sure it was the motor that wasn't working, which was confirmed. [h...")
 
(First Floor)
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== Heating ==
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Ujima House has a central heating system, operated and maintained by the landlord. Hot water is pumped from the boiler house located on the roof to the various radiators, most of which are finned tubes in vented enclosures, looped around the edges of the building.
  
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=== Current Configuration ===
  
Motor seems dead, [[User:mentar|mentar]] took it apart and connected it to the mains to make sure it was the motor that wasn't working, which was confirmed.
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The heating appears to come on intermittently throughout the day. At the time of writing its not clear if its on a schedule, a thermostat elsewhere in the building controlled by the landlord, or if there is a fault. The Hackspace is always warm enough, so its yet to be an issue.
[https://www.dropbox.com/sh/6sagaenhghakcg6/r6_uE1lVzB Drop box photos]
 
  
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The thermostats are all configured to be 18°C which may be a little conservative - we'll see how it goes.
  
The motor is a bit of a puzzle :
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=== Ground Floor ===
  
Old wiring appears to be three-phase, but the current motor, which looks fairly new, is single-phase.
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To be confirmed
  
The motor is numbered  1.541TPCB3, which doesn't appear to correspond with the parts listed at http://www.tecmotors.co.uk/ though TPC is one of their designations.
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=== First Floor ===
  
The exact same motor is listed at http://www.engineersmate.com/products/SINGLE-PHASE-MOTORS-230V/1-5KW-4-POLE-FOOT-MOUNT-230V-1PH-PERM/P239654
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==== Diagram ====
  
The wiring diagram inside the connection cover appears to show a capacitor-start motor with a centrifugal switch, but there is no obvious switch. It would be reasonable to assume some of the internal wiring is to a switch, but the connections shown are open circuit. Furthermore, if they were to a switch, it would turn the motor off once it got to speed.
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[[File:Ujima_heating.jpg|800px]]
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==== Zones ====
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In all 4 corners of the first floor there's a basic controller attached to the wall, which controls a solenoid valve. These are paired with a wireless thermostat.
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From each corner a heating loop runs along side the wall.
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==== Thermostat Locations ====
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{| class="wikitable"
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! Zone
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! Location
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! Type
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|-
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| NE
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| On the internal wall at the front of the class room, next to the whiteboard
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| Digistat RF1 (Temp only)
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|-
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| SE
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| In the alcove between the shelving units and the wall of the main hacking area.
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| Digistat RF2 (Basic Scheduler)
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|-
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| SW
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| Near the first aid kit by the front door.
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| Digistat RF2 (Basic Scheduler)
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|-
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| NW
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| Located in the secure storage cupboard - currently on a shelf.
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| Digistat RF2 (Basic Scheduler)
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|}
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[[Category:Premises]]
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[[Category:Infrastructure]]

Revision as of 00:48, 24 January 2019

Ujima House has a central heating system, operated and maintained by the landlord. Hot water is pumped from the boiler house located on the roof to the various radiators, most of which are finned tubes in vented enclosures, looped around the edges of the building.

Current Configuration

The heating appears to come on intermittently throughout the day. At the time of writing its not clear if its on a schedule, a thermostat elsewhere in the building controlled by the landlord, or if there is a fault. The Hackspace is always warm enough, so its yet to be an issue.

The thermostats are all configured to be 18°C which may be a little conservative - we'll see how it goes.

Ground Floor

To be confirmed

First Floor

Diagram

Ujima heating.jpg

Zones

In all 4 corners of the first floor there's a basic controller attached to the wall, which controls a solenoid valve. These are paired with a wireless thermostat.

From each corner a heating loop runs along side the wall.

Thermostat Locations

Zone Location Type
NE On the internal wall at the front of the class room, next to the whiteboard Digistat RF1 (Temp only)
SE In the alcove between the shelving units and the wall of the main hacking area. Digistat RF2 (Basic Scheduler)
SW Near the first aid kit by the front door. Digistat RF2 (Basic Scheduler)
NW Located in the secure storage cupboard - currently on a shelf. Digistat RF2 (Basic Scheduler)