CTC Union 950 Technical specifications

Art.no 580090002/3
Eng.
Feb -03
Providing sustainable energy solutions worldwide
161 505 10-1
Installation- and maintenance instruction
CTC 950
Wall mounted oil-/gas-fired unit

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161 105 07 05-10/From Serialno:7115-0202-41
Art.no 580090002/3
Eng.
Feb -03
Installation and maintenance
CTC 950
Wall mounted oil-/gas-fired unit

161 505 10 03-01

3161 115 06 02-01
TABLE OF CONTENTS
01. Technical data
1.1 General description..................................................................... 4
1.2 Technical data...............................................................................4
1.3 Construction..................................................................................5
02. Installation CTC 950
2.1 With one heating circuit without hot water...............................6,7
2.2 With hot water tank and one heating circuit............................8,9
2.3 With hot water tank and two heating circuits.......................10,11
2.4 With heat exchanger.............................................................12,13
03. Electrical installation
3.1 General information...................................................................14
3.2 Electrical diagram D-580070...................................................15
3.3 Electrical diagram D-580097...................................................16
3.4 Electrical diagram D-580098...................................................17
04. Operation
4.1 Control panel..............................................................................18
4.2 Start-up....................................................................................... 19
05. Assembly instruction
boiler......................................................................................20,21
06. Assembly instruction pipe kit
6.1 Pipe kit (579990301)......................................................... 22
6.2 Pipe kit (580035301)..........................................................23
07. Assembly instruction
heat exchanger (579970301) ..........................................24,25
08. Assembly instruction
hot water priority relay (580166402)...................................26
09. Service oil burner................................................................... 27
10. Service boiler........................................................................... 28
11. Service check and electrical installation........................ 29
12.Chimney solutions
12.1 Balanced flue system 80/125...................................................30
12.2 Separate flue outlet (80 mm) and air inlet (80 mm)............... 31

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01. TECHNICAL DATA
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1.1 General description The CTC 950 is a wall mounted oil fired unit. CTC 950 is delivered with
expansion vessel, circulation pump, oil burner, instrument panel and
safety valve.
CTC 950 combines small dimensions, easy maintenance, extremely low
noise level and high efficiency.
CTC Quality : Made in Sweden:The main task of the CTC engineers has always been
and will be to combine Swedish steel quality and innovative techniques of
thermic exchange in order to ensure highest efficiency and long life and
at the same time respecting nature and environment
Modern design: The new compact design of the oil wall-mounted unit - CTC 950 -is a
new innovative development which satisfies the needs of present and
future markets in every aspect. The simple and attractive casing
conceals a complete central heating system.
Compact air/flue-gas system : The new CTC 950 wall-mounted boiler unit can be used as preferred for
operation that is dependent on or independent of the room air.
The CTC LAS system is made of high-grade INOX stainless steel and
can be used with advantage for the concentric connection of the air
supply and flue gas duct in houses without a conventional chimney.
The supply air connection can also be made using a separate connecting
piece.
If the house already has a chimney, this can continue to be used with the
CTC LAS system. The CTC 950 wall-mounted boiler unit is available in
several models. It can be equipped at the factory with the preferred
burners.
1.2 Technical data CTC 950 Output kW 23,3
Input kW 25,5
Weight kg 112
Boiler efficiency % 91,5
Water content l 23
Flue gas outlet ø 82 mm int.
Air inlet ø 80 mm
Heating flow G 3/4”
Heating return G 3/4”
Expansion vessel l 10
Max working pressure bar 3
Test pressure (in production) bar 4,3
Safety valve bar 2,5
Boiler water resistance T 20° 20 mbar
Option: Heat exchanger
Hot water capacity 10-45°C l/min 9,3
Option: Hot water tank
Hot water capacity 10-45°C l/h 620
l /10 min 250
<

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01. TECHNICAL DATA
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1.3 Construction
Air inlet
Manometer
Insulation
Cleaning
door
Expension
vessel
Burner
Filling valve
only when
at exchanger
version
Pump
Combustion
chamber
Baffle plate
stainless steel1 pcs
Baffle plate
4 pcs
Automatic
air bleeder
Safety valve
2,5 bar
Flue outlet
with sealing
Filling / draining valve
Heat exchanger complete
for domestic hot water
(option)

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02. INSTALLATION
2.1. CTC 950 with one heating circuit without hot water.
• Electrical diagram D-580070
Dimensions
1. Flue outlet diam 82 mm internal
with high temp sealing diam 80 mm
2. Air inlet hose diam 80 mm internal
3. Flow G 3/4” internal/external
4. Return G 3/4” external

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02. INSTALLATION
2.1. CTC 950 with one heating circuit without hot water
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161 145 07 02-01
02. INSTALLATION
1. Flue outlet diam 82 mm internal
with high temp sealing diam 80 mm
2. Air inlet hose diam 80 mm internal
3. Flow G 1 ½” (nut), alt G 1” internal
4. Return G 1 ½” (nut), alt G 1” internal
5. Flow to hot water tank G 3/4” internal
6. Return from hot water tank G 3/4” external
7. Mixing valve
2.2 CTC 950 with hot water tank and one heating circuit
• Pipe kit (P/N 579990301) 1-circuit, assembly instr. see chapter 06.
• Mixing valve (P/N 912912401)
• Electrical diagram D-580097.
Dimensions