Utica Boilers UB90-200 Installationsanweisungen

Select level location, central to piping systems served 

and close to vent and air intake terminals as possible.

Manufacture recommended accessibility clearances, if 

more stringent (i.e. larger clearances) than required 

fire protection clearances, must be used for boiler 

installation. Accessibility clearances may be achieved 

with use of removable walls or partitions.

Combustible clearances shown in Table 4 indicate 

required clearances per CSA listing. Minimum 1” 

(25 mm) clearance must be maintained between 

combustible construction and each of the right, top 

and back surfaces of boiler. Minimum 8” (203 mm) 

clearance is required on left side, to allow room for inlet 

air pipe. 18” (457 mm) clearance must be maintained 

at front where passage is required for cleaning or 

servicing, inspection or replacement of any parts 

that normally require such attention. Allow 24” (610 

mm) at front and left side and 8” (203 mm) at top for 

servicing. No combustible clearances are required to 

venting or combustion air intake piping.

Top

1” (25 mm)

8” (203 mm)

Left Side

8” (203 mm)

24” (610 mm)

Right Side

1” (25 mm)

-

Base

1” (25 mm)

-

Front

0” (0 mm)

24” (610 mm)

Back

1” (25 mm)

-

Intake/Vent 

Piping

0” (0 mm)

-

Keep boiler area clean of debris and free of flammable 

and combustible materials, liquids and vapors.

Install equipment in location which facilitates operation 

of venting and combustion air intake piping systems as 

described in this manual.

Advise owner to keep venting and combustion air 

intake passages free of obstructions. Both venting 

and combustion air intake piping systems connected 

to outdoors must permit flow through piping systems 

without restrictions for boiler to operate. 

Boiler shall be installed such that automatic gas 

ignition system components are protected from water 

(dripping, spraying, rain, etc.) during operation and  

service (circulator replacement, condensate trap, 

control replacement, etc.).

Boiler must be located where ambient temperatures 

(minimum possible room temperatures where boiler 

is installed assuming boiler is not in operation and 

therefore contributes no heat to space) are always 

above freezing temperature. 

If boiler is not level condensate drain lines will not 

function properly. Adjustable feet are located on boiler 

to make up for minor surface irregularities or tilt.

Wood frame or blocks may be used to raise boiler 

to maintain drain pitch or to be above external 

condensate pump reservoir.

Provide means for condensate drainage.

System
When an existing boiler is removed from a common 

venting system, the common venting system is likely to be 

too large for proper venting of the appliances remaining 

connected to it. At the time of removal of an existing boiler, 

the following steps shall be followed with each appliance 

remaining connected to the common venting system 

placed in operation, while the other appliances remaining 

connected to the common venting system are not in 

operation.

Seal any unused openings in the common venting 

system.

Visually inspect the venting system for proper size and 

horizontal pitch and determine there is no blockage 

or restriction, leakage, corrosion or other deficiencies 

which could cause an unsafe condition.

In so far as is practical, close all building doors and 

windows and all doors between the space in which the 

appliances remaining connected to the common venting 

system are located and other spaces of the building. 

Turn on clothes dryer and any appliance not connected 

to the common venting system. Turn on any exhaust 

fans, such as range hoods and bathroom exhaust, so 

they will operate at maximum speed. Do not operate a 

summer exhaust fan. Close fire dampers.

Place in operation appliance being inspected. Follow 

lighting instructions. Adjust thermostat so appliances 

operate continuously.

Test for spillage at draft hood relief opening after 5 

minutes of main burner operation. Use flame of match 

or candle, or smoke from cigarette, cigar or pipe.