Trane CVHH, Инструкция по установке, эксплуатации и обслуживанию

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Vent Piping
CVHH-SVX001A-EN 35
Connect the discharge of the valve assem bly to the vent
line connected to the outdoors.
N ot e: M ake sure there are no crosses
1
, elbow s, tees
or any other obstructions w ithin the first
22.86 cm (9 in.) of valve discharge. Refer to
ASHRAE Standard 15, national, state, and local
codes for additional requirem ents on piping
rupture disk and relief valve vent lines.
Figure 22. External vent line and drip leg (not provided)
1
A derate on the rated flow capacity for this configuration is published in RuptureGuard engineering bulletin, E/CTV-EB-10.
Table 8. “C” values used to determine rupture disk vent
line sizes (kg/ s); for use w ith
Figure 23, p. 36
N TON
Ev a p.
Siz e
( EV SZ)
Con d.
Siz e
( CD SZ)
“C” V a lu e s f or U n it Com pon e n t s
Tot a l
“ C”
V a lu e Ev a p. Con d. Econ .
Oil
Ta n k
900–1200 100M 100M 0.853 0.368 0.310 0.141 0.034
900–1200 100L 100L 0.939 0.415 0.349 0.141 0.034
900–1200 130M 130M 0.932 0.412 0.346 0.141 0.034
900–1200 160M 200M 1.022 0.461 0.386 0.141 0.034
900–1200 200L 220L 1.222 0.575 0.473 0.141 0.034
900–1200 220L 220L 1.284 0.637 0.473 0.141 0.034
1500- 1700 200L 200L 1.195 0.575 0.435 0.151 0.034
1500- 1700 220L 220L 1.295 0.637 0.473 0.151 0.034
900–1200 100M 10HM 0.967 0.368 0.424 0.141 0.034
900–1200 130M 13HM 1.053 0.412 0.467 0.141 0.034
900–1200 160M 20HM 1.144 0.461 0.509 0.141 0.034
1500- 1700 200L 20HL 1.332 0.575 0.573 0.151 0.034
1500- 1700 220L 22HL 1.458 0.637 0.637 0.151 0.034
Notes:
1 . Rupt ure disk diam et er is 76. 2 m m ( 3 in.) .
2 . Use t he t ot al “ C” value in
Figur e 23, p. 36 t o det erm ine t he vent line
pipe diam et er.
3 . I f piping m ult iple rupt ur e disks ( m ult iple unit s) t o a com m on vent
line, fir st det er m ine t he t ot al “ C” value for each unit , and t hen; add
all “ C” values t oget her and apply t he r esult t o
Figur e 23, p. 36 .
4 . The CVHH unit is a Sim plex chiller and has ( 1) r efr igerant cir cuit and
( 1) r elief dev ice.
Pur ge
Exhaust
Flange
Drain Valve
Drain Line
Rupt ur e
Disk
I nlet
Flange
Out let Flange