Johnson & Starley HI-SPEC J32P, Инструкции по установке, пусконаладке и обслуживанию

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Component Internal Size Resistance Component Internal Size Resistance
(mm) Factor (mm) Factor
Flue Blocks 197 x 67 0.85 per meter 135
O
Bend 100 mm pipe 0.61 per
231 x 65 0.65 run 125 mm pipe 0.25 fitting
317 x 63 0.35 150 mm pipe 0.12
140 x 102 0.60 197 x 67 0.30
200 x 75 0.60 231 x 65 0.22
183 x 90 0.45 317 x 63 0.13
Pipe 100 0.78 Raking block Any 0.30 per block
125 0.25
150 0.12 Adaptor block Any 0.50
Chimney 213 x 213 0.02 Terminal 100 mm ridge 2.5
125 mm ridge 1.0
90
O
Bend 100 mm pipe 1.22 per 150 mm ridge 0.48
125 mm pipe 0.50 fitting 100 mm GCI 0.6
150 mm pipe 0.24 125 mm GCI 0.25
150 mm GCI 0.12
Table 2
Resistance factors for use in calculating equivalent heights
Appliance Inlet Flue Outlet
Resistance (K
i
) Resistance (K
o
)
100 mm dia spigot 2.5 100 mm flue 2.5
125 mm dia spigot 1.0 125 mm flue 1.0
150 mm dia spigot 0.48 150 mm flue 0.48
Table 3
Inlet and outlet resistance
d. Worked Calculation Example:
A warm air unit with a 100 mm diameter flue spigot, fitted with a pre-fabricated flue system leading to a
ridge tile in the loft (refer Fig. 2):
From table 3:
K
ia
Inlet resistance of actual flue = 2.5
K
oa
Outlet resistance of actual flue = 2.5
K
ie
Inlet resistance of equivalent flue = 2.5
K
oe
Outlet resistance of the actual flue = 2.5
From table 2:
Other resistances of actual flue:
Terminal = 2.5
Pipe bend ( 2 x 0.61) = 1.22
Pipe (4 x 1m @ 0.78) = 3.12
(5 x 0.3m @ 0.78) = 1.17
Sum K = 8.01
Equivalent height :
From the formula
(2.5 + 2.5)
H
e
= 6.2 x
(2.5 + 2.5) - (0.78 x 6.2) + 8.01
H
e
= 3.793 This flue exceeds 1.0m equivalent height and is therefore satisfactory.
e. Main burner lights i. Loose electrical connection Check connections.
but fan fails to run at fan control.
after approx. 3 min.
ii. Fan delay control faulty. Replace Fan Delay/Limit Switch.
iii. Faulty fan assembly. Replace, taking care not to damage
impeller.
iv. Burner pressure setting incorrect. Adjust pressure as necessary.
g. Main burner opera- i. Gas rate or burner pressure Check gas rate and burner pressure
ting with intermittent setting too low. setting.
fan operation.
ii. Fan delay control faulty Replace Fan Delay/Limit control.
h. Noisy operation. i. Gas pressure too high. Check burner pressure setting.
ii. Noisy fan motor. Replace fan assembly.
iii. Fan speed setting too high. Adjust fan speed.
i. Fan runs for excessive i. Fan delay control faulty. Replace Fan Delay/Limit control.
period or operates
intermittently after
main burner shuts down.
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