Surna Surna IsoStream SCMAHV-42, Руководство по эксплуатации и техническому обслуживанию

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1. Total manifold size and length will vary
depending on specific circumstances,
number of air handlers, etc. Choose a
supply size that is sufficient for the flow rates of
all equipment supplied by the manifold.
2. The return manifold should be sized a
minimum of ¼” larger than the supply
manifold.
3. Install shut off valves at the main supply
manifold and a shut off valve at each air
handler. This allows you to take individual air
handlers out of the cooling loop should
servicing be necessary , and allows
adjustment of flow rates.
4. Install a fresh water bypass on the main
supply manifold. This allows you to use a
municipal water supply for cooling should your
chiller require servicing.
5. Use only long turn 90’s whenever possible to
avoid restriction of the water supply.
6. Insulate all supply and return lines to avoid
condensation outside the air handler(s).
7. Flow rate requirements for these air handlers
is 2.5 GPM (Gallons Per Minute) per ton. For
example, a 5-Ton air handler requires 12.5
GPM to operate efficiently. A higher flow rate
in this range will increase the cooling
efficiency of the unit.
Important Plumbing Tips
8 The air handler water inlet and outlets are
¾” NPT.
9. The air handler is marked with “IN” and
“OUT” water connections for proper
direction of flow. The unit will not operate
properly if these connections are reversed.
11. Propylene Glycol should be utilized at a
minimum of 30%/70% (glycol/water) solution.
This prohibits freezing and acts as a system
lubricant/anti-corrosive to keep the chiller
and air handlers working at peak
performance. DO NOT use Ethylene Glycol
(standard car antifreeze). If ambient
conditions are below 20° F (-7° C), a 50/50
solution should be used.
12. Once all plumbing is complete, start the
system with clean water to flush out all
residue from the system and to check the
water circuit(s) for leaks. Do not power the
chiller on at this time. After running water
through the plumbing for roughly 5 minutes,
drain the water from the system, correct
leaks/retest the plumbing as necessary, and
refill with the prescribed glycol/water mixture
(see mixture requirements above). Turn on
the system and top off the reservoir as
needed.