5
1.
Introduction
Figure 1 - Typical cascade configuration (S-cb PX 120 Above).
This Cascade manual is intended for the S-CB
+
and the S-CB PX 120 wall-hung high efficiency CH boilers
by Strebel Ltd. These boilers are available, in order of ascending output, as S-CB
+
60,
+
80,
+
100,
+
120,
PX120,
+
150 and
+
180.
The S-CB 60
+
- 120
+
(Not including the PX models) can be combined in one cascade set, as can the S-cb
+
150-180 boilers, but the S-CB PX 120 models can only be combined with the PX 120 model.
Strebel Ltd can supply standard cascade systems with mounting frame, piping and low loss headers for up to
four boilers in the 60-120 range, four boilers in the PX 120 range and even six in the 150-180 range. For
cascades with more boilers, a dedicated system must be designed.
The Strebel S-CB
+
boilers are standard equipped with an internal cascade manager for up to twelve boilers.
No extra controllers are necessary, only connect a 2-wire cable between all boilers.
The low-loss header can be fitted on the right-hand side as well as on the left-hand side without making any
alterations to the delivered parts. The gas connection can also be fitted on one of both sides, independently
from the side chosen for the low loss header.
To commission the cascade installation, it is necessary to set a number of parameters on the boilers, see
chapter 12.1.
Содержание S-CB 100
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