McQuay Micro Tech II Installation Manual
Installation and Maintenance Manual IM 788-0
RoofPak™ MicroTech II™
Remote User Interface
Group: Aftermarket Products
Part Number: 300040363
Date: December 2003
© 2003 McQuay International
Table of Contents
IInstallation of Remote Keypad Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation of Remote Keypad Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
To engage/disengage the remote keypad panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Using the Keypad/Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Display Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Password Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Password Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Clear Alarm Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Keypad Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Left Arrow Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Right Arrow Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Up Arrow (+) Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Down Arrow (-) Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Back/Cancel Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Enter/Save Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Alarm Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Clear Alarm Key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Keypad/Display Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Changing Set Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Clearing Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Modifying Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 IM 788
NOTICE
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with this instruction manual, can cause interference to radio communications. It has been tested
and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These
limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. Operation of this equipment in a residential area is likely to cause
harmful interference; in which case the user is required to correct the interference at his own expense.
McQuay International disclaims any liability resulting from any interference or for the correction
thereof.
WARNING
Electric shock hazard. Can cause personal injury or equipment damage.
This equipment must be properly grounded. Connections and service to the MicroTech II control panel must
be performed only by personnel that are knowledgeable in the operation of the equipment being controlled.
WARNING
Excessive moisture in the control panel can cause hazardous working conditions and improper
equipment operation.
When servicing this equipment during rainy weather, the electrical components in the main control panel
must be protected from the rain.
CAUTION
Static-sensitive components. A static discharge while handling electronic circuit boards can damage
the components.
Discharge static electrical charge by touching the bare metal inside the main control panel before performing
service work. Never unplug any cables, circuit board terminal blocks, relay modules, or power plugs while
power is applied to the panel.
WARNING
To avoid possible unit damage, Compressor pumpdown is required before removing power to the controller.
IM 788 3
Installation of Remote Keypad Interface
WARNING
Disconnect all power sources to unit before installing interface. Exposure to electricity and moving
parts can cause severe personal injury.
1. Mark the remote keypad interface (1120216-01) location on the backside of the main control box keypad
deadfront. (See Figure 1)
2. Drill two clearance holes for #10 screws 7 ¾ inches
apart in the vertical direction. Approximate location of
the bottom hole in the keypad deadfront are as follows:
For 55 inch high units – 3 1/4 inches from the
bottom and 3 1/4 inches from the left edge.
For 72 & 96 inch high units – 3 1/4 inches from the
bottom and 5 3/4 inches from the left edge.
3. Fasten the remote keypad interface assembly to the
deadfront using the two #10 screws and nuts supplied in
a plastic bag in the kit.
4. Disconnect the existing communication cable from the
existing keypad on the deadfront and reconnect it to
Figure 1: Backside of the main control box keypad deadfront
SCHEMATIC
#10 SCREW
REMOTE KEYPAD
INTERFACE ASSY
J1(from MCB) modular jack on the remote keypad
interface assembly.
5. Connect the communication cable that is supplied with
the remote keypad interface assembly between the existing keypad on the deadfront and the J2 (to local keypad)
modular jack.
6. Secure ground wire (green) supplied with remote keypad interface assembly to one of the existing keypad
mounting studs by removing its nut. Placing the ring terminal end of the ground wire over the stud and refasten
with the nut.
7. There are three pressure sensitive schematics supplied,
place one of the schematics on the front side of the deadfront above or beside the keypad. Place another on the
backside of the deadfront wherever space allows.
T
N
O
R
F
D
A
E
D
F
O
E
D
I
S
E
G
N
I
H
#10 NUT
TO MCB
GROUND WIRE
EXISTING
COMMUNICATION
BACK OF EXISTING
KEYPAD
ADDITIONAL
COMMUNICATION
CABLE
4 IM 788
CABLE
Installation of Remote Keypad Panel
1. Install the remote keypad panel (1120217-01) following
local power authority codes.
2. Cable between remote keypad interface and remote keypad panel is to be field supplied. Cable requirements are
specified on the schematic.(Figure 2)
Figure 2: Schematic
To engage/disengage the remote keypad panel.
1. Locate switch SW1 on remote keypad interface on the
backside of the main control box keypad deadfront. (See
Figure 3)
3. Make connections between the remote keypad interface
and the remote keypad panel per the schematic.
2. Depress switch SW1 to engage remote keypad panel.
3. Depress switch SW1 to disengage remote keypad panel.
Figure 3: SW1 Switch location
SW1 Switch
IM 788 5
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