Aerco SmartPlate User Manual download pdf (Page 41)

SmartPlate Installation, Operation & Maintenance Manual

CHAPTER 6 – SCHEDULED MAINTENANCE

OMM-0069_0E AERCO International, Inc.  100 Oritani Dr.  Blauvelt, NY 10913 Page 41 of 138

SP-100 Phone: 800-526-0288 PRI: 11/26/2013

2. Check for leakage between the Plate Pack and Frame [Figure 6-2 (A)].

a) If there is evidence of leakage, use a felt-tip marker to mark the area where the

leakage appears to be coming from.

b) Refer to Chapter 8, paragraphs 8.7 and 8.8 to correct the cause of the leakage.

3. Check for leakage between plates to the outside [Figure 6-2 (B)]

a) If there is evidence of leakage, mark the area with a felt tip marker on the two plates

next to the leakage.

b) Refer to Chapter 8, paragraph 8.7 and 8.8 to correct the cause of the leakage.

4. If there is no evidence of leakage, replace the splash guard on the Plate Pack and return

the unit to service use.

Figure 6-2. Double-Wall Heat Exchanger Leakage Checks - Splash Guard Removed

6.4 OVER-TEMP SWITCH CHECK

Once every 3 months, check the Over-Temp Switch located in the ECS/SP Control Box as

follows:

1. Refer to Chapter 4, paragraph 4.3.2 and lower the Over-Temp setting to approximately

5°F below the present setpoint temperature shown in the lower display of the Temperature

Controller.

2. Verify that an Over-Temp Alarm is generated and the following events occur:

a) The Control Valve (Siemens MXG-461) closes.

b) The Over-Temp Switch generates an audible alarm.

3. Following successful completion of the Over-Temp alarm check, return the Over Temp

Switch setting to its original setting (20°F above the unit’s setpoint).

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 137 138

No comments

Aerco SmartPlate User Manual Page 41