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Part number 550-142-054/0411
GV90+ gas-fired water boiler — Boiler Manual
100
Dimensions and ratings
Figure 107 Dimension drawing (see Figure 108, page 101 for dimensional table)
Item
number
Description
1 1” NPT Supply
2 1” NPT Return
3 Combination pressure-temperature gauge, 2 ½” short shank
4 ¾” NPT Relief valve outlet
5 Plug dome, 2” black
6 Junction box
7 Inlet air fitting, 3" PVC
8 Flue outlet, 3" PVC
9 ½” Condensate drain
10 ½” NPT Gas supply connection (provided by others)
11 Drip leg (provided by others)
12 Union (provided by others)
13 Manual main shutoff gas valve (provided by others)
14 ON/OFF switch