Burnham 1100-H4 User Manual

Safe operation and other performance criteria were

met with gas manifold and control assembly provided

on boiler when boiler underwent tests specified in

American National Standard for Gas-Fired Low-

Pressure Steam and Hot Water Boilers, ANSI Z21.13.

Verify that the venting, water piping, gas piping and

electrical system are installed properly. Refer to

installation instructions contained in this manual.

Confirm all electrical, water and gas supplies are

turned off at the source and that vent is clear of

obstructions.

Confirm that all manual shut-off gas valves between

the boiler and gas source are closed.

WARNING

Completely read, understand and follow all

instructions in this manual before attempting

start up.

Fill entire heating system with water and vent air

from system. Use the following procedure on a Series

Loop or multi-zoned system installed as per Figure 25

or 26 to remove air from system when filling.

WARNING

The maximum operating pressure of this boiler

is 0 psig. Never exceed this pressure. Do not

plug or change pressure relief valve.

NOTICE

If it is required to perform a long term pressure

test of the hydronic system, the boiler should

first be isolated to avoid a pressure loss due to

the escape of air trapped in the boiler.
To perform a long term pressure test including

the boiler, ALL trapped air must first be removed

from the boiler.
A loss of pressure during such a test, with no

visible water leakage, is an indication that the

boiler contained trapped air.

1. Close full port ball valve in boiler supply piping.
2. Isolate all zones by closing zone valves or shut-off

valves in supply and return of each zone(s).

3. Attach a hose to the vertical hose bib located prior to

the full port ball valve in the system supply piping.

(Note - Terminate hose in five gallon bucket at a

suitable floor drain or outdoor area).

4. Starting with one circuit at a time, open zone valve

VIII. System Start-up

or shut-off valve in system supply and return piping.

5. Open hose bib.
6. Open fill valve (Make-up water line should be

located directly after full port ball valve in system

supply piping between air scoop and expansion

tank).

7. Allow water to overflow from bucket until discharge

from hose is bubble free for 30 seconds.

8. Close the opened zone valve or shut-off valve for

the zone being purged of air, then open the zone

valve or shut-off valve for the next zone to be

purged. Repeat this step until all zones have been

purged. At completion, open all zone valves or

shut-off valves.

9. Close hose bib, continue filling the system until the

pressure gauge reads 12 psi. Close fill valve.

(Note - If make-up water line is equipped with

pressure reducing valve, system will automatically

fill to 12 psi. Follow fill valve manufacturer’s

instructions).

10. Open isolation valve in boiler supply piping.
11. Remove hose from hose bib.

Confirm that the boiler and system have no water

leaks.

Prepare to check operation.
1. Obtain gas heating value (in Btu per cubic foot)

from gas supplier.

2. Connect manometer to pressure tap on gas valve.

Use 1/8 NPT tapping provided.

3.  Temporarily turn off all other gas-fired appliances.
4.  Turn on gas supply to the boiler gas piping.
5.  Confirm that the supply pressure to the gas valve is

14 in. w.c. or less. Refer to Table 5 for minimum

supply pressure.

6. Open the field installed manual gas shut-off valve

located upstream of the gas valve on the boiler.

7. Using soap solution, or similar non-combustible

solution, electronic leak detector or other approved

method. Check that boiler gas piping valves, and

all other components are leak free. Eliminate any

leaks.

DANGER

Do not use matches, candles, open flames or

other ignition source to check for leaks.

8. Purge gas line of air.