Smith Cast Iron Boilers GB200 SERIES - Manual (Page 4)

4
FIGURE 2.1: MODEL GB200 BOILER DIMENSIONS
PRESS.
RELIEF VALVE
B
WATER
LEVEL
INDICATOR
2" RETURN
FRONT
MINIMUM CLEARANCES
TO COMBUSTIBLES
Top: 28"
Rear: 18"
Left & Right: 18"
Front: ALCOVE
BOILER
MODEL
GB200-S-4H
GB200-S-4L
GB200-S-3
GB200-S-5
DIMENSIONS
A
15 3/8"
18 7/8"
18 7/8"
22 3/8"
5"
6"
6"
7"
B
WATER
LINE
A 6 3/4"
GAS
VALVE
2 1/2"
14 3/4"
2" STEAM
SUPPLY
PRESSURE CONTROL
PRESS.
GAUGE
3 3/8"
41"
SPILL SWITCH
ROLLOUT SWITCH
3"
21"
9 7/8"
18 1/8"
16 1/2"
21 7/8" 2 3/8"
LOW
WATER
CUT-OFF
20"
23 1/4"
23 1/4"
18 1/4"
26 7/8"
14 3/4"
23 7/8"
2 1/2"
18 1/8"
3/4" PLUGGED
TAPPING
-LEFT SIDE VIEW- -FRONT VIEW- -RIGHT SIDE VIEW-
2" RETURN
REAR
PROBE LOCATION FOR ELECTRIC LWCO.
1/2"
PLUGGED
TAPPING
NOTE: OPTIONAL FLOAT LOW WATER CUT-OFF SHOWN .
WARNING: Never install boiler on carpeting as heat
damage and/or fire may result.
STEP 1: LOCATING/SETTING BOILER
Boiler may be installed in an alcove (see dimensions in Fig-
ure 2.1). Locate boiler so connecting flue pipe between draft
hood and chimney is as short as possible.
Observe the following minimum clearances to combustibles:
18" on sides...alcove at front...28" at top...18" at rear...6" from
flue pipe in any direction. Maintain a minimum 1” clearance
between hot water piping and combustible materials. Local
code requirements may specify greater clearances and must
be adhered to.
Remove boiler from carton and set it in position. Install on
non-combustible floor only, unless local codes permit use
and fabrication of a fireproof base (see Figure 2.2).
Remove all packing material from boiler. Check that burners,
draft diverter and controls are in proper position.
Boiler shall be installed such that the gas ignition system
components are protected from water (dripping, spraying,
rain, etc.) during appliance operation and service (low water
cut-off repacement, condensate trap replacement, control
replacement).
NOTE: Do not loosen tie rods on boiler absorption unit.
They are intended to accommodate thermal expansion.
Loss of boiler's structural integrity and water leaks/dam-
age may result.
SECTION 2: BOILER INSTALLATION