Specifications

Munters Corporation
DFT
SAE
DATE
12/12/07
DWG NO.
K70203
Dehumidification Division
CHK
CAG
12/12/07
CUST NAME:
HCD1125 thru 9000-SA / ICA-0500
thru 1500 (STANDARD)
79 Monroe Street
Amesbury, MA 01913
APP
CAG 12/12/07
PAGE
1 OF
8
REV
2
STANDARD SEQUENCE of OPERATION
HCD-1125 thru 9000-SA / ICA-0500 thru 1500
NOTE: Before servicing the dehumidifier, refer to the "OPERATION AND MAINTENANCE MANUAL" provided with the
dehumidifier
1.0 CUSTOMER INTERFACE
1.1 Sequence is as follows:
1.1.1 “AUTO / OFF / MANUAL” selector switch is provided for starting the system in the Auto mode by interfacing with the
customer supplied equipment. A contact closure via the “ON/OFF” selector switch between TB06#61 and TB06#I0.1 will let
the system start in auto mode. The MANUAL mode does not require the dry contact closure input to enable the system to
start. The selector switch has an integral light and will stay illuminated at all times to indicate the equipment has power.
2.0 AUXILIARY DRY CONTACTS
2.1 Operational System States
2.1.1 SYSTEM FAULT: Auxiliary dry contacts of CR02 are provided for customer interlocking and shall close whenever the
dehumidifier goes into any fault as described in Section 6.0.
2.1.2 SYSTEM RUN (MASTER CONTROL RELAY): Auxiliary dry contacts of MS03 are provided for customer interlocking and
shall close whenever the process blower is in operation.
2.1.3 SYSTEM WARNING: Auxiliary dry contacts of CR03 are provided for customer interlocking and shall close whenever the
dehumidifier goes into a warning condition.
2.1.4 D/H RUN: Auxiliary dry contacts of MS02 are provided for customer interlocking and shall close whenever the dehumidifier
is in operation.
3.0 START-UP
3.1 Main Power Initialization Sequence
:
3.1.1 Energize the main power to the equipment by supplying correct voltage to either a customer connection directly to the main
TB01 terminal block or by using the system’s main disconnect DS1. (The selector switch will illuminate indicating the
equipment is energized)
3.1.2 The equipment’s high voltage is supplied to all motor starters and the control transformer(s). The control voltage
(115V/1Ø/60Hz) is now being supplied to the control circuits.
3.1.3 The HMI LCD, located on or in (visible through the door) the Main control enclosure is energized and will display the
“System Screen” (Figure 1.0).
3.1.4 There is a 10 sec delay in the equipment startup of the system once power is activated via the selector switch.
3.1 Startup
:
3.1.1 Normal startup operation shall occur once the main selector switch (SS01) is placed in the MANUAL or in AUTO position
with a customer-supplied auxiliary interlock (dry-contact) closed between TB06#61 and TB06#I0.2