Burnham Independence, Инструкция по эксплуатации и обслуживанию

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Figure 20: Thermostat Isolation Relay Attachment
h. Install gauge glass and protective rods in fittings.
i. Attach "Lowest Permissible Water Level" Plate
with sheet metal screws in location indicated in
Figure 9.
j. Attach "Frequent Water Addition" Label above
the "Lowest Permissible Water Level" Plate.
2. Steam Boiler with McDonnell & Miller 67 Float
Low Water Cutoff
a. Install Low Water Cutoff, see instructions packed
with control.
i . Screw brass nipples with union halves into
Tappings "C" (½ NPT). See Figure 1 and 2.
ii . Attach Gauge Glass/Low Water Cutoff
Assembly to union halves.
iii . Affix Blow-Down Card to Jacket Left Side
Panel adjacent to low water cutoff.
iv . Provide blow down discharge piping.
b. Attach street elbow siphon and pressure limit
control to low water cutoff. DO NOT TWIST
CONTROL. Use wrench on hex fitting located at
bottom of control.
c. Level the L404A pressure limit by carefully
bending the syphon until the limit's levelling
indicator hangs freely with its pointer directly
over the index mark inside the back of the case.
See Figure 18A.
d. The L404F pressure limit employs a snap action
switch and does not require leveling. See Figure
18B.
e. Install pressure gauge into Tapping "H" (¾ NPT
bushed to ¼ NPT). See Figures 1 and 2. Tighten
with wrench applied to square shank on back of
gauge. DO NOT APPLY PRESSURE ON
GAUGE CASE since this may destroy
calibration of gauge.
f. Attach "Lowest Permissible Water Level" Plate
with sheet metal screws in location indicated in
Figure 9.
g. Attach "Frequent Water Addition" Label above
the "Lowest Permissible Water Level" Plate.
3.
All Steam Boilers and Water Boilers except
"EZW" and "WC" Controls Cartons
a. Install Junction Box. See Figure 19A.
Figure 19B: Junction Box and Transformer
Assembly
Figure 19A: Junction Box and Mounting Bracket
Assembly
i . Remove center knockout in rear of Junction
Box and insert black plastic snap bushing in
hole.
ii
. Install mounting bracket to rear of Junction
Box with two (2) blunt sheet metal screws
provided.
iii . Align center and mounting holes of Junction
Box with upper front corner of jacket left
side panel.
iv . Install Junction Box to jacket from inside
vestibule area with two (2) blunt sheet metal
screws provided.
b. Mount transformer on Junction Box. For
Canadian boiler provide strain relief by loosely
securing Transformer to Junction Box with wire
tie inserted through Transformer plate and a
Junction Box mounting hole. See Figure 19B.
c. Fork connector on yellow and blue (HSP only)
wire(s) of gas valve harness must be removed
and wire stripped before making wire
connections. Refer to Section VIII for wiring.
d. Steam Boilers only. Secure the R8222
Thermostat Isolation Relay to upper left corner of
jacket vestibule panel with sheet metal screws
provided. See Figure 20.