Orion RKS250F-S Operation Manual page 44

Piping Installation
● Make sure that piping is installed reliably and correctly. Failure to do so can result in water
splashing on nearby items.
1. Water piping.
Water tank capacity (L)
Inlet port size
Outlet port size
Drain port size
2. If the cooling water flow rate is low, the compressor may
frequently cycle on and off, leading to breakdown of the
compressor.
3. Insulate water pipes.
4. When making piping connections to the product, apply 2 or 3
wraps of sealing tape around the PVC valve pipe coupling
(customer supplied), and tighten to a maximum of 29.4 N·m.
Tightening over this amount will damage the product.
5. Keep piping distances as short as is feasible, and keep rises and bends to a minimum. (Keep below
the maximum head loss, including during start times.)
Maximum head loss (m) 50/60 Hz
6. Water inlet and outlet piping installation (connecting included
parts)
(1) Install the strainer assembly on the end of the water intake
side pipe.
(2) Install the strainer assembly approx. 10 cm away from the
bottom of the water tank. Also, be sure to install the strainer
assembly so that it is not above the water surface even when
the water level in the tank is at its lowest level.
(3) Install the end of the water outlet pipe as far away from the end
of the inlet pipe as possible.
Installation
Piping Installation
CAUTION
RKS250F-S RKS400F-S
At least 10 At least 20
M10 female thread
RKS250F-S RKS400F-S
41
RKS500F
At least 25
Rp3/4
Rp3/4
29.4N・m or below
RKS500F
2 / 3
Water
inlet
10 ㎝
(Separate them from each other)
RKS750F
At least 35
sealing tape
RKS750F
1.6 / 2.6
Water outlet