Specifications

ManualsBrandsCarrier ManualsPrint & Scanstart-up and

Table 18 — Reading and Changing

Chilled Fluid Set Point

KEYPAD ENTRY DISPLAY RESPONSE COMMENTS

COOLING Change set point from

default to 48 F.

Cool Set point 1

44.0 F default

Cool Set point 1

48.0 F

Set point change

complete

SERVICE FUNCTION — This function allows the techni-

cian to view and input conﬁguration data. Factory conﬁgu-

ration data, ﬁeld conﬁguration data, and service conﬁgura-

tion data may be viewed or entered through the keypad and

display module. See Table 19 for a complete listing of con-

ﬁgurable items. Whenever a processor module is replaced in

the ﬁeld, the complete list of conﬁguration codes should be

checked for correct settings. The current software version

can be displayed. See Table 20.

Scroll down in this function to display conﬁguration in-

formation including number of compressors, tonnage, and

compressor must-trip amps.

Password Protection of HSIO Conﬁgurable Service Points

— To modify conﬁgurations and values and to use the manual

control subfunction, the password must be entered before the

ﬁrst change can be made. The default password is set to

. See Table 21 for an example of how to

enter the password to change the Lead/Lag conﬁguration.

Options Conﬁguration Tables 1 and 2 — These subfunc-

tions can be accessed by pressing or and scroll-

ing down to display the conﬁguration options. See Table 19

for a complete list of these options.

Temperature Reset, Demand Limit and Head Pressure PID

Conﬁgurations — Press and scroll down to view the

conﬁguration information. See Table 19 for a complete list.

Factory Conﬁguration Codes — Pressing allows

entry into the factory and service conﬁguration codes

subfunction. Under this subfunction, there are 5 conﬁgura-

tion codes that are downloaded at the factory. Each code is

made up of 8 digits. If the processor module is replaced in

the ﬁeld, these 5 conﬁguration codes should be checked us-

ing the keypad and HSIO display module. See Table 22 for

a description of the factory conﬁguration codes (codes 1 through

3) and service conﬁguration codes (codes 4 and 5).

The factory and service conﬁguration codes are found by

pressing . These are preset from the factory. They can

be veriﬁed by following the description in Table 22. These

codes MUST be checked and corrected in the ﬁeld if the

PSIO-1 module is replaced.

NOTE: The LOCAL/OFF/REMOTE switch must be in the

OFF position to change conﬁguration codes.

A label is applied to a control box panel with a list of

factory and service codes for particular units. Table 23 shows

how to conﬁgure a new PSIO-1 module for use in a 30HXC-

106---501CA water cooled chiller.

Transducer Calibration — Press and scroll down to

view the transducer calibration information. See Table 19

for a complete list, and the Pressure Transducers section on

page 59 for a description of this subfunction.

Manual Control Mode — This control allows the user to

have full control over the compressors, loaders, and the mini-

mum load valve (if installed) of the machine. Normal safe-

ties such as high pressure, oil level and pressure, and CPM

related alarms are NOT bypassed in this control mode. The

capacity control function and overrides ARE bypassed when

using the manual control mode. To enter this mode, switch

the LOR switch to OFF. Press at the HSIO. The dis-

play will read Manual Control Enable - Disable. Press

and switch the LOR switch to Local. The display will change

to Manual Control Enable - Enable. The Disable and Enable

will appear on the second line of the display. See Table 19

for a complete list of this function.

Scroll down and press to start the desired com-

pressor. The control will start the compressor if the pre-lube

cycle is passed, just as in normal operation. Press to

add loaders as desired and press to turn off loaders

and compressors. The Minimum Load Valve can be ener-

gized using the same procedure.

Dual Chiller Conﬁguration — Press to enter the Dual

Chiller control conﬁguration. This method of control is for

a stand-alone Master/Slave combination of chillers and will

NOT work with the Flotronic™ System Manager (FSM).

The Minus One Pass Cooler option is required for this

conﬁguration.

The chillers should be piped for series ﬂow through the

coolers. The Master chiller must be downstream from the

Slave chiller leaving water. Both the Master and Slave chiller

must be connected to the same CCN Level II communica-

tions bus with different addresses. To enable the dual chiller

conﬁguration the CCN Enable function must be set

to Enable for each chiller, otherwise each chiller will oper-

ate independently. This value can be activated through the

HSIO or through a CCN device. Both chillers should be con-

ﬁgured for Close Control and require ﬂow switches

to be installed. For cooler pump control, wire both Master

and Slave chiller outputs to the cooler pump starter. All sys-

tem inputs (temperature reset, demand limit, dual set point,

etc.) should be connected to the Master chiller. If Lead/Lag

Balance is disabled, the Master chiller will always be the

lead chiller. If Lead/Lag Balance is enabled, the control will

alternate between the Master and Slave chillers to keep their

respective run hours balanced within the value conﬁgured

for Lead/Lag Balance Delta. The desired leaving ﬂuid set

point for the Duplex chiller must be conﬁgured in

the Master chiller. CCN Control of the chillers can be dis-

abled locally through the HSIO by entering and en-

abling the Disable CCN Control value. This value must be

disabled before the chiller will return to Duplex control.