Quantcast Table 3-2: Characteristics of Available Controls (As of January, 1988)

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Jumper the collector sensor terminals on the control. Once the system is running,
hold the leads of an appropriate resistor against the storage sensor terminals
(Figure 3-19). The system should turn off, as the control is being told the storage
tank is above the high temperature.
FIGURE 3-19
Checking High Limit
Function With a Single
Resistor
TABLE 3-2: Characteristics of Available Controls (As of January, 1988)
High Limit: (F)
Manufacturer:
Model:
Type:
On/Off: (F)
TempTrak II Series
3K/10K Adj: 50-100
Adj: 80-215
Heliotrope
DTT-64 Series
None, 160, or 180
General*
20/3 or 10/3
DTT-84/94 Series
160 or 180
10K
18/5 or 9/4
DTT-64DD
180
10K
30/3
None, 160, or 180
DTT-74 Series
10K
20/5 or 10/5
Adj: 110-230
Adj: 8-24/4
Independent
CM30/32
10K
Adj: 50-104
Adj: 8-24/4
CM-33
10K
Energy
Adj: 60-160
10K
CM-50
Adj: 15/4 to
40/20
Adj: 105-212
C-30 Series
10K
20/5 or 8/3
Adj: 62-104
C-35 Series
10K
4/1 or 8/3
All
Pyramid
10K
14/3
163
Controls
20/3 or 12/3** 160
RS504 Series
Rho Sigma
10K
Adj: 120-220
RS121 Series
10K
20/3
Per specification
RS360 Series
10K
20/3.5
* Older Heliotrope General Controls are all 3K
** Proportional control: The pump motor is run at a speed proportional to the
differential. This type of control is rarely used.
INSPECTION
3.1 INSPECTION PROCEDURES
87





 


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