ICI Caldaie REX Technical Manual - page 2
1
INDEX
1
GENERAL WARNINGS .............................................................................................................................................. 1
2
TECHNICAL SPECIFICATIONS................................................................................................................................. 2
2.1
REX/REX F/REX K/REX K F 7-130 BOILER....................................................................................................... 2
2.2
REX/REX F/REX K/REX K F 140-500 BOILER................................................................................................... 4
2.3
REX 400-600 BOILER......................................................................................................................................... 5
2.4
REX DUAL/REX DUAL F (staked) 14-170 BOILER ............................................................................................ 6
2.5
REX DUAL/REX DUAL F (side by side) 80-260 BOILER .................................................................................... 8
2.6
STR BOILER..................................................................................................................................................... 10
3
INSTALLATION ........................................................................................................................................................ 11
3.1
THERMAL PLANT............................................................................................................................................. 11
3.1.1
BOILER ROOM ......................................................................................................................................... 11
3.1.2
FLUE ......................................................................................................................................................... 11
3.2
HYDRAULIC CONNECTION............................................................................................................................. 12
3.2.1
Hot water heating system with closed expansion vessel - Furnace output
≤ 300.000 kcal/h - pressure 5 bar .. 12
3.2.2
Hot water heating system with closed expansion vessel - Furnace output > 300,000 kcal/h - pressure 5 bar .. 12
3.2.3
REX DUAL/REX DUAL F (side by side) 80÷260 positioning instruments .................................................. 13
3.3
ELECTRICAL CONNECTION ........................................................................................................................... 14
3.4
REX/REX F/REX K/REX K F/STR CONTROL PANEL ..................................................................................... 14
3.5
REX DUAL/REX DUAL F OPERATING PRINCIPLES ...................................................................................... 15
3.5.1
REX DUAL/REX DUAL F control panel ..................................................................................................... 15
3.6
INVERTING THE DOOR APERTURE .............................................................................................................. 16
3.7
BURNER CONNECTION .................................................................................................................................. 16
4
ASSEMBLY .............................................................................................................................................................. 17
4.1
REX K/REX K F ASSEMBLY ............................................................................................................................ 17
4.2
REX/REX F/REX K/REX K F 7-40 BOILER CASINGS ..................................................................................... 19
4.3
REX/REX F/REX K/REX K F 50-130 BOILER CASINGS.................................................................................. 20
4.4
REX DUAL/REX DUAL F 14-70 BOILER CASINGS ......................................................................................... 21
4.5
STR BOILER CASINGS.................................................................................................................................... 22
5
START UP ................................................................................................................................................................ 23
5.1
PRELIMINARY CHECKS .................................................................................................................................. 23
5.2
WATER TREATMENT ...................................................................................................................................... 23
5.3
FILLING THE SYSTEM..................................................................................................................................... 23
6
OPERATION ............................................................................................................................................................. 24
6.1
OPERATING CHECKS ..................................................................................................................................... 24
6.2
CLEANING AND SERVICING........................................................................................................................... 25
1 GENERAL
WARNINGS
Each generator is provided with a manufacture plate that can be found in the envelope with the boiler
documents. The plate lists:
• Serial number or identification code;
• Rated thermal output in kcal/h and in kW;
• Furnace thermal output in kcal/h and in kW;
• Types of fuels that can be used;
• Max operating pressure.
A manufacture certificate is also provided which certifies the hydraulic test positive performance.
The installation must be performed in compliance with the regulations in force by professionally qualified
personnel. The term “professionally qualified personnel” means persons with specific technical skills in the
sector of heating system components.
Incorrect installation may cause damage to persons, animals or objects for which the manufacturer cannot be held
responsible.
At the first start up, all regulation and control devices positioned on the control panel should be checked for
efficiency. The guarantee shall be valid only upon compliance with the instruction given in this manual.
Our boilers have been built and tested in observance of EEC requirements and, as a consequence, CE-marked. EEC di-
rectives are as follows:
• Directive on Gas 90/396/EEC
• Directive on Output 92/42/EEC
• Directive on Electromagnetic Compatibility 89/336/EEC
• Directive on Low Voltage 73/23/EEC
IMPORTANT: This boiler has been designed to heat hot water at a temperature inferior to the boiling tem-
perature at atmospheric pressure and must be connected to a heating plant and/or a domestic hot water
plant within the limits of its performance and output.