heat-timer MPCQ Platinum User manual

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INSTALLATION AND OPERATION INSTRUCTIONS
MPCQ Platinum
STEAM HEATING AND SEQUENCING CONTROL
RESET CONTROLS FOR MULTIPLE
BOILER STEAM HEATING SYSTEMS
WARNING
The MPCQ Platinum is strictly an operating control. It CANNOT be used as a limit control. All boilers
must have all safety and limit controls required by code. It is the responsibility of the installer to verify
that all the safety and limits are working properly before the MPCQ Platinum is installed.
This control must be installed by a licensed electrician.
MPCQ
Platinum
MADE IN U.S.A.
PREV.
(DEL)
SAFETY
GROUND
MUST BE
CONNECTED
AUX
TEMP 0
AUX
TEMP 1
MENU FUNCTIONS
SELECT enters menus or accepts changes
ADJUST selects menu items or changes settings
BACK returns to previous menu
DAY selects next day
PREV./NEXT steps through output status
BOILER
HELP NEXT
PRESS TO
SELECT
BACK
OD= 31oF SYS= 11psi
ADJUST
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
AUX
TEMP 2
DO NOT APPLY ANY VOLTAGE
TO SENSOR TERMINALS
A13
A14
A15
A16
A17
A18
NETWORK
PROVE
SHUTDOWN
OUT
TEMP
BYPASS
ALL SENSORS MUST BE
GOLD SERIES SENSORS
INPUTS
ROUTE SENSOR AND AUXILIARY WIRES
THROUGH THIS KNOCKOUT ONLY
T
T
Est Pres at:9.0psi
<AB> CD EF GH
HIGH LOW OFF OFF
AUTO
T
T
C O R P O R A T I O N
R
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY
15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz
30VA MAX
USE COPPER WIRE,
CLASS 1 WIRE ONLY
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
BOILER selects boiler menus or next boiler
(DAY)
SYSTEM B C D E FA G H
LINE
NEUTRAL
SYSTEM B C D E FA
2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 21 22
G H
PRESS
4-20 mA
S
+
10
OPERATING LIMIT OUTPUTS
S

2 Heat-Timer Corp.
Panel Layout . . . . . . . . . . . . . . . . . . . . . 3
Understanding Operation Concept . . . . . . . . . 4
Cycle Operation Concept . . . . . . . . . . . . . . 4
Set Point Operation Concept . . . . . . . . . . . . 5
PID Operation . . . . . . . . . . . . . . . . . . . 5
OSS Operation. . . . . . . . . . . . . . . . . . . 5
Setback . . . . . . . . . . . . . . . . . . . . . . 5
Boost and Early Shutdown. . . . . . . . . . . . . 6
Initial Pilot Program. . . . . . . . . . . . . . . . . . 6
Selecting the System Features . . . . . . . . . . . 6
Making Sure You Have the Right Control . . . . . . 7
Installation. . . . . . . . . . . . . . . . . . . . . . . 8
Mounting the Control Box . . . . . . . . . . . . . . 8
Rear of Panel . . . . . . . . . . . . . . . . . . . . 8
Install the Sensors . . . . . . . . . . . . . . . . . . 9
Outdoor Sensor Installation . . . . . . . . . . . . 9
Heating System Sensor (HSS) Installation . . . . 9
Testing the Sensors . . . . . . . . . . . . . . . . 9
Wiring . . . . . . . . . . . . . . . . . . . . . . . . 10
Power Input Wiring. . . . . . . . . . . . . . . . . 10
Combustion Air Damper Wiring . . . . . . . . . . 10
Burner Stages Wiring . . . . . . . . . . . . . . . 10
Wiring Network Sensors (Wireless and MIG) . . . 11
Wiring Shutdown Terminals . . . . . . . . . . . . 11
Wiring Prove Terminals . . . . . . . . . . . . . . 11
Wiring Aux Input Terminals. . . . . . . . . . . . . 11
Wiring to an Extension Panel . . . . . . . . . . . 12
Wiring Extension Panel Lockout . . . . . . . . . . 12
Connecting to the Internet . . . . . . . . . . . . . 12
Connecting to the BACnet IP . . . . . . . . . . . 13
Menu Settings. . . . . . . . . . . . . . . . . . . . . 14
Setting the Control . . . . . . . . . . . . . . . . . . 16
Default Display and Changing Settings . . . . . . . 16
Display Messages . . . . . . . . . . . . . . . . . . 16
Startup Settings . . . . . . . . . . . . . . . . . . . 17
Sensor Type . . . . . . . . . . . . . . . . . . . . 17
Operation Mode . . . . . . . . . . . . . . . . . . 17
Cycle Length . . . . . . . . . . . . . . . . . . . . 17
LOGIC . . . . . . . . . . . . . . . . . . . . . . . 17
Boiler Type . . . . . . . . . . . . . . . . . . . . . 18
Total Boiler . . . . . . . . . . . . . . . . . . . . . 18
On/Off Sequence . . . . . . . . . . . . . . . . . 18
Sensor Fault . . . . . . . . . . . . . . . . . . . . 18
Day Light Saving. . . . . . . . . . . . . . . . . . 18
System Settings . . . . . . . . . . . . . . . . . . . 20
Season. . . . . . . . . . . . . . . . . . . . . . . 20
Set Point . . . . . . . . . . . . . . . . . . . . . . 20
Day/Night Heat Adjustment . . . . . . . . . . . . 21
Cycle Length Table. . . . . . . . . . . . . . . . . 21
Day/Night Cutoff . . . . . . . . . . . . . . . . . . 21
System Run-On . . . . . . . . . . . . . . . . . . 22
Setback . . . . . . . . . . . . . . . . . . . . . . 22
Boost, Early Shutdown, and Boost Adjustment . . 22
Stage Settings . . . . . . . . . . . . . . . . . . . . 23
Reaction Time . . . . . . . . . . . . . . . . . . . 23
Purge Delay . . . . . . . . . . . . . . . . . . . . 23
Minimum Run Time . . . . . . . . . . . . . . . . 24
Standby Delay . . . . . . . . . . . . . . . . . . . 24
Last Stage Hold . . . . . . . . . . . . . . . . . . 24
Avoiding Conicting Boiler Limits . . . . . . . . . 24
Throttle. . . . . . . . . . . . . . . . . . . . . . . 24
Lead Boiler and Rotation Settings . . . . . . . . . . 25
Lead Boiler. . . . . . . . . . . . . . . . . . . . . 25
Rotate Mode . . . . . . . . . . . . . . . . . . . . 25
Boiler Operation Mode . . . . . . . . . . . . . . . . 26
Schedules . . . . . . . . . . . . . . . . . . . . . . 26
Day/Night Schedule . . . . . . . . . . . . . . . . 26
Copy Schedule. . . . . . . . . . . . . . . . . . . 28
Set Date and Time . . . . . . . . . . . . . . . . . 28
Vacation Schedule Setting . . . . . . . . . . . . . 28
Maintenance . . . . . . . . . . . . . . . . . . . . . 29
System and Outdoor Sensor Trim . . . . . . . . . 29
Fast Cycle . . . . . . . . . . . . . . . . . . . . . 29
Heat Establish Pressure and Pressure Lockout . . 29
Password and Local Security . . . . . . . . . . . 29
Override Remote Changes . . . . . . . . . . . . 30
Shift . . . . . . . . . . . . . . . . . . . . . . . . . 30
Auto/Bypass . . . . . . . . . . . . . . . . . . . . . 31
Communication . . . . . . . . . . . . . . . . . . . . 32
Remote Interface. . . . . . . . . . . . . . . . . . . 32
Space Lock . . . . . . . . . . . . . . . . . . . . 32
Day Target . . . . . . . . . . . . . . . . . . . . . 32
Night Target . . . . . . . . . . . . . . . . . . . . 32
Vacation Schedule . . . . . . . . . . . . . . . . . 33
Internet Communication . . . . . . . . . . . . . . . 33
Internet ID . . . . . . . . . . . . . . . . . . . . . 33
Internet Port forwarding Table . . . . . . . . . . . 33
Internet Alarms. . . . . . . . . . . . . . . . . . . 34
BACnet Communication . . . . . . . . . . . . . . . 35
BACnet Communication Option . . . . . . . . . . 35
BACnet Device ID . . . . . . . . . . . . . . . . . 35
IP, Mask, and Gateway Address . . . . . . . . . . 35
MPCQ Platinum BACnet Variable List . . . . . . . 35
Platinum BACnet PICS Statement . . . . . . . . . . 38
Troubleshooting . . . . . . . . . . . . . . . . . . . 39
Specications . . . . . . . . . . . . . . . . . . . . . 40
Contents

MPCQ Platinum Installation and Operation Manual 3
Panel Layout
MPCQ
Platinum
MADE IN U.S.A.
PREV.
(DEL)
SAFETY
GROUND
MUST BE
CONNECTED
AUX
TEMP 0
AUX
TEMP 1
MENU FUNCTIONS
SELECT enters menus or accepts changes
ADJUST selects menu items or changes settings
BACK returns to previous menu
DAY selects next day
PREV./NEXT steps through output status
BOILER
HELP NEXT
PRESS TO
SELECT
BACK
OD= 31oF SYS= 11psi
ADJUST
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
AUX
TEMP 2
DO NOT APPLY ANY VOLTAGE
TO SENSOR TERMINALS
A13
A14
A15
A16
A17
A18
NETWORK
PROVE
SHUTDOWN
OUT
TEMP
BYPASS
ALL SENSORS MUST BE
GOLD SERIES SENSORS
INPUTS
ROUTE SENSOR AND AUXILIARY WIRES
THROUGH THIS KNOCKOUT ONLY
T
T
Est Pres at:9.0psi
<AB> CD EF GH
HIGH LOW OFF OFF
AUTO
T
T
C O R P O R A T I O N
R
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY
15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz
30VA MAX
USE COPPER WIRE,
CLASS 1 WIRE ONLY
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
BOILER selects boiler menus or next boiler
(DAY)
SYSTEM B C D E FA G H
LINE
NEUTRAL
SYSTEM B C D E FA
2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 21 22
G H
PRESS
4-20 mA
S
+
10
OPERATING LIMIT OUTPUTS
SPressure Transducer
system sensor
When closed, all stages
are turned off*
From Heat-Timer network
sensors**
Checks status of system
components*
From outdoor sensor
mounted in the shade
Red lights indicate when the
associated stage relay
is activated
Internet Communication
Option**
Internet Communication
Option**
Internet Communication
Option**
* DRY CONTACT ONLY
** Only available with the Internet Communications package
Depress the knob to move
forward through the menus and to
accept changes. To change a
setting's value, rotate the knob.
Depress the button to go back
through the menus
Digital display shows the system status,
Target, outdoor, and system temperatures.
To view and adjust settings, press the
Adjust/Select button.
Green Ground
screw must be
connected to
Earth Ground
120VAC
Power
BYPASS position
overrides outputs
so the burners are
always active
Pump Output is
active when MPCQ
requires heat and during
optional Run-On
Burner Stages Outputs
are active when MPCQ
requires Heat
A Relay must be installed
for each stage to function

4 Heat-Timer Corp.
Understanding Operation Concept
The Heat-Timer MPCQ Platinum is a microprocessor based control for multi-stage/multi-boiler steam heating systems. The control
operates a bank of modular steam boilers, automatically activating and deactivating stages so as to provide the desired heat pattern for
the application whether heating a building or a process application.
Cycle Operation Concept
Cycle-On
21 Minutes
Cycle-Off
39 Minutes
Heat On Heat Off
Cycle-On
8 Minutes
Cycle-Off
52 Minutes
Sample Mild Weather Cycle
Sample Cold Weather Cycle
Cycle Length 60 minutes
Establish
Heat
Establish
Heat
The control operates on the CYCLE principle which was created specically for steam heating systems. The CYCLE concept was
developed by Heat-Timer to overcome the inabilities of standard thermostatic controls to cope with the erratic properties of steam.
Steam heat can not be switched on and off instantaneously. Instead, it takes time to build up a “head of steam”. And, once the system
starts heating up, it has momentum which can not quickly be stopped.
By monitoring the outside temperature, the MPCQ Platinum is able to anticipate the heating needs of the building. Each xed time
CYCLE period (usually 60 minutes long but adjustable from 10 to 240 minutes) is divided into a heat-ON segment and a heat-OFF
segment. The length of the ON segment will vary with the outside temperature. The colder it is outside, the longer the ON part of the
cycle will be.
The MPCQ Platinum constantly checks the outside temperature by means of a solid state sensor located on the exterior of the building.
At the same time it also monitors pressure by means of a heating system pressure sensor located in the common header. On the basis
of this combined data, the MPCQ Platinum sends instructions to the heating plant to control the heat level in the building.
In addition to adjusting the length of the ON part of a cycle, the outdoor temperature acts as a system cutoff. When the outdoor
temperature rises above an adjustable set point, the MPCQ Platinum will not call for any heat. When the outdoor temperature drops
below the set point, the MPCQ Platinum will automatically begin controlling the heating cycles. Meanwhile, the heating system
pressure sensor controls the number of boiler stages which are turned on, and the amount of steam pressure in the system. The effect
of these two sensors combined is to provide an even comfortable level of heat throughout the building.
1. The MPCQ Platinum starts activating steam stages when the outside temperature falls below the Outdoor Cutoff (factory set to 55°F
for the day and 40°F for the night, but fully adjustable). The MPCQ Platinum will continue to bring on more stages, and/or hold all
the stages on, until the system pressure reaches the set point. This indicates that steam has gotten entirely through the system, or
that pressure is established.
2. Once pressure is established, the heat-ON segment of the cycle will begin. During the ON part of the cycle, the MPCQ Platinum
will activate as many stages as necessary to achieve and hold the pressure set point. Stages which may no longer be needed once set
point pressure has been achieved will be turned off.
3. Once the ON part of the cycle has ended, the heat-OFF part of the cycle will begin. All the steam boilers will be turned off.
4. When the OFF part of the cycle is over, the MPCQ Platinum will once again start to establish pressure unless either the outside
temperature has risen above the outdoor cutoff, or the header pressure is more than Heat Establish Pressure setting. See page 29.
5. The boilers will start ring once the steam pressure in the system falls below the Heat Establish Pressure setting. See page 29.
Cycle-On
21 Minutes
Cycle-Off
39 Minutes
Establish
Heat
Cycle-On
21 Minutes
Establish
Heat
Cycle Delayed until
pressure drops below
Heat Establish Pressure
1 2 3 4 5
60 Minute Cycle
(Cycle-On=21 + Cycle-Off=39)

MPCQ Platinum Installation and Operation Manual 5
Set Point Operation Concept
The MPCQ Platinum can sequence stages using different logics. The PID Logic is primarily used to save energy on building heat. The
OSS is used in application where fast response and pressure accuracy are the key factors.
PID Operation
(Available in Set Point Operating Mode)
PID control logic is primarily used for building set point heating. The logic will utilize two primary adjustable settings to add or subtract
stages. The Reaction Time is used to turn on/energize stages. On the other hand, the Minimum Runtime is used to turn off/de-energize
stages. On a call for heat and when the outdoor temperature is below the Outdoor Cutoff, the MPCQ Platinum will turn on/energize the
lead boiler’s lowest ring stage to start the Purge Delay. After the elapse of the purge period, the MPCQ Platinum will start calculating
the Reaction Time. If after a full Reaction Time the control logic foresees additional stages are needed, the MPCQ Platinum will energize
the following stage. If that stage was another boiler, that boiler has to go through a full Purge Delay before starting to calculate the
Reaction Time for that stage. Otherwise, if the next stage was the higher ring stage on the same boiler, the Reaction Time will start
from the moment the higher ring stage relay is energized.
When the MPCQ Platinum PID logic foresees that the system will overshoot, it will shutdown stages making sure that the last stage turned
on/energized elapsed a full Minimum Runtime before it is turned off/de-energized. No additional stages will be turned off/de-energized
until another full Minimum Runtime is elapsed. On the other hand, the lead stage will remain energized until the system reading exceeds
the Set Point by the Last Stage Hold value in addition to satisfying the Minimum Runtime condition. That is, if the Set Point was 10
PSI and the Last Stage Hold was set to 2 PSI, the lead stage will remain energized until the system reaches 12 PSI and a full Minimum
Runtime elapses. This is useful in protecting the lead stages from short cycling in mild weather conditions.
OSS Operation
(Available in Set Point Operating Mode)
OSS is used in fast reacting application as in process applications, where maintaining a set point is critical. The OSS utilizes the Throttle
setting, as a mean to calculate the number of stages the MPCQ Platinum shall have on at any point. For every Throttle Range below the
set point an additional stage shall be turned on/energized. That is, if the set point was 12 Psi and the Throttle setting was 2 Psi, if the
System dropped below 10 Psi (12 Psi - 2 Psi), the lead stage will energize. With further decrease in the system value to 8 Psi (12 Psi - 2
Psi - 2 Psi), the second stage will energize.
As the system pressure rises towards the set point, stages will turn off. Using the previous example, when the system rise to 10 Psi, boiler
B will de-energize leaving only boiler A on. Boiler A will remain on until the system rises a one full Throttle range above the set point.
This will leave the lead boiler A on until the pressure rises to 14 Psi then turn off/de-energize.
Set Point = 12 Psi Throttle = 2 Psi Boilers (A, B, C, D, E, and F) Lead Stage =<A>
Falling Pressure Rising pressure
System
Pressure
Throttle
Ranges Stages Turned On Stages On Stages Turned Off Stages On
14 Psi -1 ---- None A None
12 Psi 0 ---- None ---- A
10 Psi 1 A A B A
8 Psi 2 B A + B C A + B
6 Psi 3 C A + B +C D A + B +C
4 Psi 4 D A + B +C + D E A + B +C + D
2 Psi 5 E A + B +C + D + E F A + B +C + D + E
0 Psi 6 F A + B +C + D + E + F ---- A + B +C + D + E + F
Setback
(Available in Set Point Operating Mode)
Whenever the MPCQ Platinum is at the Night schedule setting, it follows the Night Cutoff as its outdoor temperature system cutoff.
It will then allow the system pressure to drop by the Setback setting and sequence the stages to hold that pressure for the full night
period. The lower pressure provides the opportunity to save energy in applications where a cycle system does not apply.

6 Heat-Timer Corp.
Boost and Early Shutdown
(Available in Cycle Operating Mode)
The Morning Boost is designed to return the building to comfortable ambient temperatures after the cooler Night (Save) period. The
MPCQ Platinum will accomplish this by holding a constant steam pressure for a given period based on the Schedule Day #1 setting.
If no boost is needed on a day of the week, simply DO NOT program the Day #1 setting, and use the Day#2 setting instead. See Boost
on page 22.
The Early Shutdown should be used in commercial buildings where the building will be unoccupied in the Night time. A Vari-Boost
as described above is run. In addition, the MPCQ Platinum will switch into the Night mode earlier than the latest Night setting for
that day. The warmer it is outside, the earlier it will shift into Night. The Early Shutdown time is adjusted using the Morning Boost
Adjustment Curve but works in the opposite fashion. The warmer it is outside, the earlier the MPCQ Platinum will shift to night. As
it gets colder, the time between early shutdown and the last Night setting diminishes. The maximum amount of Early Shutdown is 90
minutes. See Early Shutdown on page 23.
Initial Pilot Program
Setting an Initial Pilot Program will ease the conguration of the MPCQ Platinum and will give the opportunity to utilize many of the
energy saving features and give more comfortable heat when needed.
The program should consist of the following:
Selecting the features that your system can utilize (page 6),
Making sure you have the right control and accessories (page 7),
Install the Control (page 8),
Setting the System Startup (page 17),
Setting the System Settings (page 20),
Setting the Stage (page 23),
Setting the Schedule (page 26),
Setting the Communication (page 6).
Selecting the System Features
The MPCQ Platinum has been designed with steam commercial building heating as well as process heating as the primary functions.
With this in mind, many of the MPCQ Platinum features can be utilized to ease, enhance, and improve your system performance. Some
of these features are listed in this section.
Cycle or Set Point (Control Mode)
• The MPCQ Platinum can control the System either by adjusting the Cycle-On length according to the Outdoor Temperature (Cycle
mode) or by maintaining an adjustable Set Point. The earlier relies on an Outdoor Sensor (supplied with the control) and achieves
better fuel savings in building heating in addition to better comfort.
PID or Oversize (Control Logic)
• The MPCQ Platinum can use an algorithm (PID) to look at the rate of change in the System. If the System pressure changes quickly,
the MPCQ Platinum will turn on or off stages quickly. If the pressure changes are slow or minor, the MPCQ Platinum will react slowly.
The PID logic provides the most stable operation. Stages are brought on or off based on the rate of change of the System pressure and
the impact a stage has on that rate.
• For applications where the stages are oversized for most load conditions, the MPCQ Platinum has Oversize System logic. The Oversize
logic turns stages on or off proportionally, based on how far the System pressure is from the Set Point.
Number of Stages
• The MPCQ Platinum can be congured to control a variety of boiler-burner congurations. It can control up to 24 boiler stages using
the MPCQ Platinum in addition to 2 Extension panels.
• The MPCQ Platinum can control up to 4 stage burners.
• Burner stages can be sequenced Lo/Hi/Lo/Hi or Lo/Lo/Hi/Hi. The rst lets a burner re its lower stage rst followed by its higher
stages. The second lets all burners lower stages to turn on before starting any higher burner stages. Both can only apply to 2-stage or
more burners.

MPCQ Platinum Installation and Operation Manual 7
Adding up to 2 Extension Panels for Additional Stages
• When additional Stages are needed, the MPCQ Platinum can control up to 2 additional extension panels for a total of 24 stages.
• Extension panels have built-in Lockout input terminals. The MPCQ Platinum can isolate locked out boilers from the operation process
and display their status.
Automatic Rotation among Stages
• Rotating the rst burner to be activated on a call for output promotes even wear on all burners. The MPCQ Platinum has three modes
of rotation: Manual, First-ON/First-OFF, or automatically every selected time period from every hour to every 41 days.
Schedules
• By setting an operating Schedule and Night Setback, you can save energy while providing comfortable heat to the building. The setting
allows the MPCQ Platinum to use a different cycle curve as well as a different outdoor cutoff . In addition, it reduces space target
temperature during the night or when building is unoccupied, i.e. ofce buildings and schools.
• During the day, Day Time settings will change cycle curve, outdoor cutoff, as well as space target. Each weekday can have up to 4
Day Time and 4 Night Time (Setback) settings. See Schedules on page 26.
Boost
• This feature lets the MPCQ Platinum bring the building up to temperature quickly after a Night period. When the MPCQ Platinum is
to start the Boost, it starts its boost earlier than the Day #1 schedule setting. The length of boost is determined by the amount set by
the Boost Adjustment for a period that is calculated using the outdoor temperature as a guide. See Boost on page 22.
Early Shutdown ESD
• This feature allows the MPCQ Platinum to shift to Night Setback before the last Night Time setting for that day. The Early Shutdown
varies based on Outdoor temperature (OD). The warmer the Outdoor temperature the earlier the MPCQ Platinum will shift to Night
Setback.. See Boost on page 22.
Remote Communication
• The MPCQ Platinum can be upgraded to Heat-Timer’s BACnet (BAC controls) or Internet system (RINet controls) to monitor and
control all MPCQ Platinum functions from a remote location. However, only the Internet communication package upgrade allows the
MPCQ Platinum to accept additional sensors, to monitor their status, and to provide alarms deliveries to e-mail, text capable mobile
phones, and the web if the sensor values are not in the correct range.
Vacation
• The MPCQ Platinum RINet (Internet controls only) can be set to have a third space target for a specied period. This can be used for
vacation situation in schools. It offers the user a signicant fuel savings during those periods.
Making Sure You Have the Right Control
If you need the MPCQ Platinum to do additional tasks that either is not listed or do not know how to congure them, contact Heat-
Timer Corp. Sales Department either by Phone [phone], Fax [phone], or by e-mail [e-mail].

8 Heat-Timer Corp.
Installation
Before beginning the installation, carefully evaluate your heating system. The MPCQ Platinum can control the heating system
through these different methods:
• Controlling multiple single or multi-stage boilers.
• Controlling up to 24 burner stages by interfacing to a maximum of two Heat-Timer Extension Panels with lockout.
Mounting the Control Box
Locate an appropriate site
• Near the equipment to be controlled at eye level, or where the displays are easily visible and away from excessively high or low
temperatures.
• The surface must be strong enough to hold the weight of the control and its enclosure.
• Leave 12" of clearance under the enclosure to ease conduit connection.
Remove the MPCQ Platinum from its enclosure
• Remove the top center screw holding the panel to the enclosure.
• Loosen the two screws holding the control to the bottom of the enclosure.
• Tilt the panel forward and then remove from enclosure. Make sure to unplug any control cables.
• Mount the enclosure to the surface using the holes provided.
• Connect the conduits and bring the wires to the bottom of the enclosure. Class 1 wiring must enter the enclosure through a
different opening from class 2 wiring.
Rear of Panel
Activate the Battery
• Turn the MPCQ Platinum panel over to reveal the piggyback circuit
board (CPU board).
• Remove the plastic strap that isolate the battery contacts.
• The battery is used to maintain date and time of the control during
power loss periods.
ALERT
Do not install the battery unless you plan to power and utilize
the control at once. If the control is not powered, the battery
will lose its charge in 100 days.
BACK OF PLATINUM PANEL
Fuse
Battery
Software
Chip
Motherboard
CPU
Board
Communication
Board
Connect to
RJ45/Cat-5 cable
Connect to
RS485 on
Extension Panel
Connect to
RS485 on
Wireless NM
Connecting RS485 or Ethernet Cables
• Some panels might include an addition communication board on the back.
• When connecting an RS485 cables for extension communication, the round terminal connection must be screwed to one of the side
knockouts on the enclosure.
• Ethernet connections (Internet or BACnet) must have the proper communication board installed.
• Remember that the upgrade to Internet or BACnet control requires adding a communication board and replacing the CPU board.
• When connecting the MPCQ Platinum to an Extension Panel, connect the RS485 to the back of the MPCQ Platinum. Use the
center RS485 terminals on the motherboard. Do not use the RS485 terminals on the communication board.
ALERT
When connecting the MPCQ Platinum to an Extension Panel, use the RS485 terminals
on the motherboard. DO NOT use the RS485 on the communication board.
• Install the MPCQ Platinum back into its enclosure

MPCQ Platinum Installation and Operation Manual 9
Install the Sensors
Outdoor Sensor Installation
• Only use the Heat-Timer Outdoor Sensor included with the unit (HT# 904220-00).
• Locate the sensor in the shade on the north side of the building. The sensor should
never be in direct sunlight.
• Be sure the location is away from doors, windows, exhaust fans, vents, or other
possible heat sources.
• The sensor should be mounted approximately 10’ feet above ground level.
• Adhere the Outdoor Label provided to the back of the sensor base.
• Use the Sensor Enclosure Base bottom knockout for the conduit. Use the locknut to
hold the conduit and enclosure base together. Screw the cover to the base.
• If screws are used to afx the enclosure to the wall, make sure to seal around the
sensor and wall except from the bottom.
• The sensor wires can be extended up to 500’ using 2-conductor shielded cable
(Belden #8760 or equivalent (#18/2)). Do not connect the shield at the sensor but at
the control using the control Outdoor Sensor terminal marked with an “O” (A2).
• Do not run sensor wires in conduit with line voltage wiring.
• To enable the Cycle Mode, an outdoor sensor must be used. See Sensor Type
settings on page 17.
• The outdoor sensor is used as an Outdoor Cutoff. The MPCQ Platinum will disable
all stages when the outdoor temperature is above the adjustable Outdoor Cutoff
temperature. See page 21. This feature will automatically be activated when an
outdoor sensor is connected.
Outdoor
Sensor
snap-in
location
Shield
not connected
Conduit
Outdoor Label
on back of Sensor
Outdoor Sensor
Mounting
screws
location
Seal around
sensor and wall
Outdoor
drip-hole
A11
A12
OUT
TEMP
T
OUTDOOR SENSOR WIRING
Shield
ALERT
Determining the proper location for the Outdoor Sensor is very important. The MPCQ Platinum will base the heat on
the outdoor temperature information it receives from this location. If the sensor is in the sun or covered with ice, its
reading will be different from the actual Outdoor temperature (OD).
Heating System Sensor (HSS) Installation
Locating HSS
• Install the System Pressure transducer provided approximately 10’ feet past the last
boiler on the common supply header but before any takeoffs.
• When installing the pressure transducer, use a threaded Brass Isolation Tube (¼”
Brass Pigtail) attached to the steam header.
• The Red and Black wires can be extended up to 500’ using shielded 2-conductor
cable. The ground, shield, and reference tube on the transducer are not used.
• Do not use an external voltage source for the transducer as the MPCQ Platinum will
provide the excitation voltage to the transducer.
• Connect the Black wire from the transducer to terminal A5 (S). Connect the Red
wire to terminal A6 (+).
• Do not run sensor wires in conduit with line voltage wiring. Class 1 voltage must
use a different knockout and conduit from class 2 voltage.
AUX
TEMP 0
AUX
TEMP 1
A4
A5
A6
A7
A8
A9
A10
A11
A12
AUX
TEMP 2
A13
A14
A15
A16
A17
A18
NETWORK
PROVE
T
T
T
PRESS
4-20 mA
S
+
Cut the Green,
White, and Clear
Tube
Connect
to 1/4" pigtail
BLACK
RED
Transducer
4-20mA
Testing the Sensors
• Power up the MPCQ Platinum.
• The control will go through a countdown, and then the top right of the display marked (SYS) will show the pressure read by the
Heating System Sensor (HSS). The top left (OD) will show the temperature read by the Outdoor Sensor.
• If the display reads OPEN, SHORT, or an incorrect sensor value, follow the troubleshooting procedures on page 39.
• Wireless and MIG sensors readings can only be congured and viewed on the Internet through the ICMS website (http://www.
htcontrols.com)

10 Heat-Timer Corp.
Wiring
• When connecting the MPCQ Platinum Output wiring, make sure to use the bottom knockouts. The
use of any other knockouts or holes for the Outputs will void the control warranty.
Power Input Wiring
• Bring the power wires through the bottom left knockout of the enclosure. Do not bring wires through
the sides or the top as this will interfere with servicing the control.
• Attach 120V 60 Hz to terminals Line and Neutral.
• Ground wiring must be connected to Ground screw. DO NOT use the neutral line as earth ground.
• Class 1 copper wire is required by UL.
• Class 1 voltages must enter the enclosure through a different opening from any Class 2 voltage.
• Heat-Timer recommends the installation of a Surge Suppressor and a Power Switch before the Power
Line connection for safety and ease of service.
LINE
120 VAC
60 Hz
NEUTRAL
Power
Switch
2 3
Earth
Ground
Combustion Air Damper Wiring
• The System relay is designed to operate a combustion air damper. The terminals are dry contacts
only. They do not source any power. A separate power source is required.
• Wire the Normally Open (N.O.) dry contact terminals to the combustion air damper.
• Make sure the System relay is installed to allow the operation of the combustion air damper.
• The System relay can operate 1 Amp inductive or 6Amp resistive load at 120 VAC 60 Hz
Comb.
Air
Damper
L
N
SYSTEM B C DA
LINE
TR AL
SYSTEM B C DA
2 3 4 5 6 7 8 9 11 12 13 14 15
10
Unit1
Lo
Unit3
Lo
Unit5
Lo
Unit2
Hi
Unit4
Hi
Burner Stages Wiring
• Each of the MPCQ Platinum outputs operates a single stage on a burner. The outputs are dry contacts
only. They do not source any power.
• Bring the boiler wires through one of the enclosure bottom knockouts.
• The Normally Open (N. O.) contacts for each stage must be in series with the boiler limit circuits.
• Make sure any wired stage's relay is installed to allow the operation of that stage.
• Each stage relay can operate 1 Amp inductive or 6Amp resistive load at 120 VAC 60 Hz
For up to 8 on/off boilers (without an Extension Panel)
• Attach the rst boiler to the N. O. contacts marked A (terminals 7 & 8), the second boiler to B (9 &
10), and the third boiler to C (11 & 12), and so on.
For up to 4 lo/hi boilers (without an Extension Panel)
• The N. O. contacts for each boiler must be wired in series with the boiler limit circuit.
• Attach the low stage of the rst boiler to the NO contacts marked A (terminals 7 & 8), the high stage
to B (9 & 10)
• Attach the low stage of the second boiler to the N. O. contacts marked C (terminals 11 & 12), the
high stage to D (13 & 14)
B C DA
B C DA
6 7 8 9 11 12 13 14 15
10
OPERATING LIMIT
Unit1
Lo
Unit2
Lo
U
Unit1
Hi
Unit2
Hi
WARNING
All Output wiring must be run through the BOTTOM Knockouts. The use of other
knockouts or drilled holes for the output wiring will void the control warranty.
WARNING
Never apply external voltage to the input terminals. Permanent damage will
occur voiding the control warranty.

MPCQ Platinum Installation and Operation Manual 11
Wiring Network Sensors (Wireless and MIG)
(Requires Communication Package Upgrade)
• Remember that network sensors can only be congured remotely through the Internet
(http://www.htcontrols.com).
• The MPCQ Platinum Network terminals can connect to up to 64 network sensors.
• When connecting to multiple sensors, a Mini-MIG control can be used to handle up to
16 sensors each. Multiple MIG's can connect to a single MPCQ Platinum.
• Wireless sensors can be used with transceivers to reduce building sensor wiring. The
wireless Network Manager can be wired directly to the RS485 on the communication
board. The balance of the wireless system will communicate its information to the
wireless Network Manager.
• A variety of network sensors are available for the MPCQ Platinum:
◦ Stack sensor
◦ Count/Pulse sensor (connects to water meters.)
◦ Oil tank level sensor (OTM)
◦ Pressure, vacuum, and humidity transducers
◦ Wireless temperature sensors system
◦ Multiple Input Gateway (Mini-MIG) that gives the capability of connecting the
control to multiple temperature or switch sensors.
Platinum
Wireless
Network
Manager
Antena
MIG
Network
Network
Sensors
AUX
TEMP 0
AUX
TEMP 1
A10
A12
AUX
TEMP 2
A13
A14
A15
A16
A17
A18
NETWORK
PROVE
SHUTDOWN
OUT
TEMP
T
T
T
T
PRESS
4-20 mA
S
+
S
RS485
Mini-MIG
Multiple Input Gateway
Power
Comm
PWR
L N
1 2
Network
N1
3 4
Input1
7
Input2
9
Input3
11
Input4
13
Input5
15 17
Input7
19
Input8
21
Input
6
10 12 14 16 18 20 22
Input9
23
Input10
25
Input11
27
Input12
29
Input13
31 33
Input15
35
Pulse
Input16
37
Input
14
24 26 28 30 32 34 36 38
T1 T2 T3 T4
125 72 73 75
RESET VIEW
8
0056789
Water
Meter
Stack
Sensor
Oil Level
Wiring Shutdown Terminals
• This feature can be used whenever it is desirable to turn off the MPCQ Platinum from
a remote location or another controller. A typical use for this feature would be to
disable all heat from an Energy Management System (EMS).
• When the Shutdown is enabled (by shorting the Shutdown input terminals, all stage
relays will de-energize. The System relay will continue to be energized for the Run-
On delay period.
• The Shutdown signal must be a dry contact only. No voltage can be placed across the
SHUTDOWN terminals - A3, A4
A2
A3
A4
A5
SHUTDOWN
TEMP
PRESS
S
Wiring Prove Terminals
• The Prove feature checks system components operation before activating any of the
boilers stages. It can be used to connect to the combustion air damper's end switch.
That way the system relay will energize the combustion air damper and the prove will
check if the damper is fully opened prior to activating any boiler stages.
• If the PROVE input terminals are open, the MPCQ Platinum will enable only the
System relay. All stage relays will be de-energized when the PROVE input is open.
• If NO external conditions are to be met before the stage relays are energized, DO
NOT remove the factory installed jumper across the PROVE terminals.
• The Prove signal must be a dry contact only. No voltage can be placed across the
PROVE terminals A9, A10.
AUX
A8
A9
A10
A11
PROVE
T
WARNING
The PROVE input CANNOT be used as a safety limit. All equipment must have its own certied limit and safety
controls as required by local codes. Any safety interlock MUST be wired back to the boilers or other equipment as
required by code.
ALERT
The PROVE terminals must be shorted for MPCQ Platinum to provide heat. DO NOT remove the factory installed
PROVE jumper unless replacing it with a Prove signal.
Wiring Aux Input Terminals
(Requires Internet Communication Package Upgrade)
• Remember that Aux sensors can only be congured remotely through the Internet communication package.
• Each Aux terminal can connect to only one temperature (-30°F to 250F) or switch sensor.

12 Heat-Timer Corp.
Wiring to an Extension Panel
• The MPCQ Platinum can control up to 8 stages solely.
By adding a Heat-Timer Extension Panel using RS485
cable, you can add an additional 8 boiler stages. A total
of 2 Heat-Timer Extension Panels can be added to any
single MPCQ Platinum totaling 24 boiler stages.
• Each Extension Panel has 8 Lockout inputs that can
be used by the MPCQ Platinum when sequencing the
boilers. Each Lockout controls one boiler regardless of
the number of stages it has.
• When the MPCQ Platinum is connected to an Extension
Panel, you will be able to scroll through each of the
boilers using the Adjust/Select Knob.
• If a communication package is purchased with the
MPCQ Platinum and the Extension Panel, the Internet
will show the status of each boiler including the
Extension Panel boilers.
• No Output cards are required for the Extension Panel
when used with the MPCQ Platinum. You will need to
install the proper relay for each of the stages needed.
• To be able to set the extension panel stages in the
MPCQ Platinum Startup menu, the extension must be
powered and connected to the MPCQ platinum. The
MPCQ Platinum must then be re-powered up.
See Extension Panel documentation for additional wiring
instructions.
MPCQ PLATINUM PANEL
Motherboard
CPU
EXTENSION PANEL 1
Connect to
RS485
Interconnect Cables
Flat Cable Connectors
plugs to RS485 terminals
on Back of Panel PCB board.
(Do not use RS485 on RI board)
Flat Cable Connectors
plugs to RS485 terminals
on Back of Panel PCB board.
RS485 for Remote
communication only
WIRING MPCQ PLATINUM TO MULTIPLE EXTENSION PANELS
Connect to
RS485
EXTENSION PANEL 2
Wiring Extension Panel Lockout
• Each Extension Panel has 8 Lockout inputs that can be used by the MPCQ Platinum when sequencing the boilers.
• The rst Lockout terminals on the rst Extension panel will control the rst MPCQ Platinum boiler, the boiler that has stage A as
its rst stage. The second Lockout terminals on the rst Extension panel will control the second MPCQ Platinum boiler.
• When a boiler Lockout terminals are shorted, the MPCQ Platinum will de-energize that boiler stages. In addition, it will omit that
boiler from the sequencing process until those terminals are opened again. The display will show L/O under that boiler stages
indicating the Lockout Status. I.e. If the MPCQ Platinum was controlling ve 2-stage boilers (AB, CD, EF, GH (stages wired to
MPCQ Platinum) and IJ (stages wired to the Extension)) and boiler AB and CD where energized at Hi. Then if, the Extensions
rst lockout input was shorted, boiler AB stages 91st boiler) will de-energize immediately. If any Lockout alarms were congured,
a delivery will take place. See Internet Alarms on page 34.
Connecting to the Internet
• The MPCQ Platinum control comes either as a Standard without any communication
or with Internet or BACnet communication.
• Any MPCQ Platinum with Internet communication control package has an Internet
Communication Board installed on the back of the main board.
• Connect the Internet CAT5 Ethernet cable coming from the Internet Modem to
the Internet RJ45 Communication socket on the back of the MPCQ Platinum
communication board.
• If the control is sharing the Internet connection with other computers, an Internet
Router or Internet server must be used. See Internet Setting on page 33.
• If required, set the MPCQ Platinum Internet Settings as described on page 33.
Internet Communiation
Connection to Back of Control
Motherboard
CPU
Board
BACnet or
Ethernet
Communication
Board
Connect Ethernet
Cat-5 cable from
Internet modem
to RJ45 socket
Internet
Modem
or Router

MPCQ Platinum Installation and Operation Manual 13
Connecting to the BACnet IP
• The MPCQ Platinum control comes either as a Standard without any communication
or with Internet or BACnet communication.
• Any MPCQ Platinum with BACnet communication control package has a BACnet
Communication Board installed on the back of the main board.
• Connect the BACnet CAT5 Ethernet cable coming from the network to the BACnet
RJ45 Communication socket on the MPCQ Platinum communication board.
• Set the MPCQ Platinum BACnet Network Settings as described on page 35.
BACnet Communiation
Connection to Back of Control
Motherboard
CPU
Board
BACnet or
Ethernet
Communication
Board
Connect BACnet
Cat-5 cable to
RJ45 socket
BACnet Network
BACnet HUB
or Switch

14 Heat-Timer Corp.
SHIFT FROM DAY TO
Night
Extend Day
Schedule
Menu Settings
------ SETTINGS ------
Shift
<System Settings>
<Schedules>
<Maintenance>
<System Startup>
--- SENSOR TYPE ---
F
C
-- CYCLE LENGTH --
60 Min
[]
- SYSTEM STARTUP-
SELECT
To continue
- ARE YOU SURE? -
N O
YES
SHIFT FROM NIGHT TO
Extend Day Sched
Day
Schedule
Night
- OPERATION MODE -
Cycle
Set Point
---------- LOGIC --------
PID
OSS
--- BOILER TYPE --
On/Off
2-Stage
3-Stage
4-Stage
--- TOTAL BOILER ---
8
[]
--ON/OFF SEQUENCE --
Lo/Hi/Lo/Hi
Lo/Lo/Hi/Hi
--- SENSOR FAULT ---
Stages On
Stages Off
- DAY LIGHT SAVING
Enable
Disable
Day
- EXTEND DAY TIME-
90 Min
[]
SYSTEM STARTUP P. 17
----- SCHEDULES -----
Day/Night Schedule
Copy Schedule
Set Date/Time
SCHEDULES P.26
------ SCHEDULES ------
MON # 1
Day Time 6:00Am
Night Time 10:00Pm
------ SCHEDULES ------
TUE # 2
Day Time **:**
Night Time **:**
------ SCHEDULES ------
TUE # 1
Day Time 6:00Am
Night Time 10:00Pm
Press BOILER (DAY)
Press NEXT
------ SCHEDULES ------
Copy Mon Schedules
To All Other Days
(Select to Execute)
- MAINTENANCE MENU-
Pressure Trim 0.0psi
Outdoor Trim +0 F
Fast Cycle Off
Ht-Est-Press 0.5psi
Password
MAINTENANCE P.29
-- PRESSURE TRIM --
0.0psi
[]
-- OUTDOOR TRIM --
+0 F
[]
--- FAST CYCLE ---
Off
On
-HEAT EST PRESSURE -
0.5psi
[]
PASSWORDS ENABLED?
N o
Yes
--------- LOGIN ---------
Enter Password:
****
Change PASSWORD?
N o
Yes
Cycle ONLY
Multi-Stage Boilers
On/Off
Boilers
SHIFT P.30

MPCQ Platinum Installation and Operation Manual 15
------ SETTINGS ------
Season Summer
Shift
<System Settings>
<Schedules>
<Maintenance>
<System Startup>
- SYSTEM SETTINGS -
Season Winter
Set Point 10.0psi
Day Heat Adjust E
Night Heat Adjust B
Day Cutoff 55 F
Night Cutoff 40 F
System Run-On 2m
<More Settings>
SETTINGS P.20
SYSTEM SETTINGS 2
System Run-On 2m
Set Point 10.0psi
Setback 2.0psi
Boost Mode Disabled
<Stage Settings>
<Remote Interface>
-------- SEASON -------
Winter
Summer
When in
Winter
When in
Summer
-- DAY ADJUSTMENT --
Higher = More Heat
E
[]
- NIGHT ADJUSTMENT -
Higher = More Heat
B
[]
OUTDOOR NIGHT CUTOFF
40 F
[]
OUTDOOR DAY CUTOFF
55 F
[]
-- SYSTEM RUN-ON --
2m
[]
------ SET POINT ----
10.0 psi
[]
Set Point
Cycle
Set Point
Cycle
------ SETBACK ----
2.0 psi
[]
Set Point
--- BOOST MODE---
Disabled
Manual
Vari
Vari+ESD
Cycle
- BOOST ADJUSTMENT -
Higher = More Boost
0min
[]
- BOOST ADJUSTMENT -
Higher = More Boost
3.0
[]
- STAGE SETTINGS --
Reaction Time 2m
Purge Delay 0.0m
Min Runtime 2m
Standby Delay 10m
Lst Stg Hold 0.0psi
Throttle 2.0psi
<Lead Settings>
-- REACTION TIME ----
2m
[]
-- PURGE DELAY ----
0.0m
[]
-- MINIMUM RUNTIME--
2m
[]
STAGE P.23
-- STANDBY DELAY --
10m
[]
--- LEAD SETTINGS ---
Lead Boiler AB
Rotate Mode Time
LEAD P.25
--- LEAD ROTATION --
Time
Manual
FOFO
--- LEAD BOILER ----
A B
CDl
EF
GH
- LAST STAGE HOLD -
0.0 psi
[ ]
----- THROTTLE -----
1.5 psi
[]
SEASON P.20
BOOST P.22

16 Heat-Timer Corp.
Setting the Control
Default Display and Changing Settings
The MPCQ Platinum is equipped with an 80 character (20 character per
row x 4 rows) digital display. The Display's default screen is divided into
4 rows of text as per the diagram.
The following is a list of the buttons and knobs and their functionality:
SELECT/ADJUST Is a turning knob and a push button. When turned in
the default screen will scroll through all the boilers.
When pushed will enter the Settings menu. In
menus, it scrolls through the available options when
dialed. When clicked, it accepts the selected value.
BACK When in the default screen, pushing it will display
the date, time, Space Average, and the Auxiliary
input status. When in any menu, pushing it will go
back to the parent menu.
NEXT In the default screen, it scrolls forward through the
boilers. In Boiler Menu, goes to the next setting. In
Schedules, goes to next schedule time for that day.
PREV.
(DEL)
BOILER
(DAY)
HELP NEXT
PRESS TO
SELECT
BACK
ADJUST
OD= 31oF SYS= 12psi
Cycle On: 2/15min
<AB> CD EF GH
HIGH HIGH LOW ---
Depress the knob to move
forward through the menus and to
accept changes. To change a
setting's value, rotate the knob.
Depress the button to go back
through the menus, or to view a
setting value without changing it
Digital display shows the date, heating
status, and cutoff, outdoor, and system
values. To view and adjust settings,
press the Adjust/Select button.
Sensor Status
Messages
Boilers
Boiler Status
BOILER (DAY) When in the default screen, will display the Boiler Menu. In the Boiler menu, switches between boilers. In
Schedules, switches between different weekdays.
PREV. (DEL) In the default screen, it scrolls backward through the boilers' status. In Schedules, it clears a specic schedule
setting. In the Boiler Menu, will display the previous boiler settings.
HELP When clicked on a specic menu item will provide help instructions.
When powering up the MPCQ Platinum for the rst time, it will take you through an 70 second count down followed by the System
Startup Settings then another 10 second boot setup and nally end with the default system screen. Once the control is mounted and
wired, set up an initial pilot program.
• Set and adjust System Startup Settings (page 17)
• Set and adjust System Settings (page 20)
• Set and adjust Stage Settings (page 23)
• Set and adjust Maintenance (page 29)
• Set and adjust Schedules (page 26)
Display Messages
The MPCQ Platinum normal display layout reserved the second line for message indications. The following is a list of the most
common Message Display Line information:
• Est Pres at 10 psi The MPCQ Platinum is set to Cycle Operation Mode and is energizing stages to establish heat prior
to starting a heating cycle. See Cycle Operation Concept on page 4.
• Cycle On: 1/5 min The MPCQ Platinum is in the Cycle-On period for a minute out of a total Cycle-On of 5 minutes.
See Cycle Operation Concept on page 4.
• Cycle Off: 6/60 min The MPCQ Platinum is in the Cycle-Off period. Only 6 minutes has elapsed from the total cycle of
60 minutes. See Cycle Operation Concept on page 4.
• Fast C/D: 68°F The Boost option is Vari+ESD. The MPCQ Platinum is turning off stages at the end of the last
Day schedule setting for the Fast Cool Down until the space average temperature drops below 68°F
(Night Space Target). See Fast Cool Down on page 22.
• Pres L/O: 2 psi In Cycle Operation Mode the MPCQ Platinum is in Pressure Lockout until the pressure drops to 2
psi. See Heat Establish Pressure on page 29.
• Space L/O: 71°F In Cycle Operation Mode the MPCQ Platinum is in Space Lockout until the space average drops
below 71°F. See Space Lock on page 32.
• Vari Boost Active The MPCQ Platinum has started a Vari Boost in a Cycle Operation Mode. See Boost on page 22.
• Manual Boost 29 min The MPCQ Platinum has started a Manual Boost in a Cycle Operation Mode. Only 29 minutes are
left to terminate the Manual Boost. See Boost on page 22.
• Summer The control is set to Summer. No heat is active. See Season on page 20.
• No Call For Heat The Outdoor temperature is above the Outdoor Cutoff. See Day/Night Cutoff on page 21.

MPCQ Platinum Installation and Operation Manual 17
• Shutdown Active The SHUTDOWN Terminals are Shorted. No boilers are active. See Shutdown on page 11.
• Sensor Fault Either the Outdoor or the System sensor is reading Short or Open. All the boilers are either On or
Off depending on the Sensor Fault setting on page 18.
• LSH: 12 psi The Lead boiler is in Last Stage Hold. This example shows that the lead stage will turn off when
system pressure reaches 12 Psi. See Last Stage Hold on page 24.
• TGT= 10 psi In a Set Point Operation Mode the MPCQ Platinum is sequencing stages to hold the Set Point in Day
schedule. See Set Point on page 20.
• Setback to 10 Psi In a Set Point Operation Mode the target has changed to the setback value due to Night Schedule.
See Setback on page 22.
• Prove Failure After boilers have run for a while, Prove signal was opened. The boiler relays will de-energize.
However, the System relay will remain energized. See Wiring Prove on page 11.
• Waiting for Prove There is a call for heat and the Prove terminals are open before the boilers start ring. The boiler
relays will be de-energize while the System relay is energized. See Wiring Prove on page 11.
• Sys RunOn: 59sec The last boiler stage has turned off and the System relay will remain energized for the additional
Run-On Delay of 59 seconds. See System Run-On on page 22.
Startup Settings
SELECT: Settings/System Startup
If entering this menu option after the control has been set, several warnings will display prior
to entering the Startup menu to emphasize that any changes in this menu will drastically
change the way the control behaves.
ALERT
A good practice after performing any
Startup menu modications is to check
all operating settings and adjustments to
match the new settings.
Sensor Type
°F for Fahrenheit or °C for Celsius Default: °F Fahrenheit
SELECT Settings/System Startup/.../Sensor Type
• It allows the user to display temperature information and settings in either ºF
(Fahrenheit) or ºC (Celsius).
--- SENSOR TYPE ---
F
C
- OPERATION MODE -
Cycle
Set Point
Operation Mode
Cycle or Set Point Default: Cycle
SELECT Settings/System Startup/.../Operation Mode
• The MPCQ Platinum can control the sequencing of the steam boilers either by using
the cycle concept (See page 4) or by maintaining an adjustable Set Point.
• When Cycle is selected, the MPCQ Platinum will adjust the cycle on length according to the Outdoor Temperature and the Heat
Adjustment. This option will provide more comfort and fuel savings for building heating applications.
• The Set Point option is useful when sequencing the boilers to maintain a specied xed target. This can be used in building
heating where additional zone distribution is available or in processing applications.
Cycle Length
(Available with Cycle Operating Mode only)
Adjustable from 10 to 240 minutes Default: 60 minutes
SELECT Settings/System Startup/.../Cycle Length
• With most cast iron radiation, choose a 60 minute cycle. If the radiators are very large
or the system is oversized, choose a 90 minute cycle.
• For convector or baseboard radiation, choose a 30 minute cycle.
• For air handlers or blower units, choose a 20 minute cycle.
• The cycle length can be adjusted from 10 to 240 minutes, but it is recommended to
start with the guidelines above.
-- CYCLE LENGTH --
60 Min
[]
LOGIC
(Available with Set Point Operating Mode only)
PID, OSS Default: PID
SELECT Settings/System Startup/.../Logic
• The PID option allows the MPCQ Platinum to sequence stages based on PID. The
PID relies on the rate of change in the System Temperature. The PID logarithmic
calculations foresee changes and sequence stages based on those changes. It is the
most efcient operation for most heating systems. See PID Operation on page 5.
---------- LOGIC --------
PID
OSS

18 Heat-Timer Corp.
• When PID is Selected, the following are the settings that directly affects this modes operation:
◦ Reaction Time (See page 23) SELECT Settings/System Settings/More Settings/Stage Settings/Reaction Time
◦ Purge Delay (See page 23) SELECT Settings/System Settings/More Settings/Stage Settings/Purge Delay
◦ Minimum Run Time (See page 24) SELECT Settings/System Settings/More Settings/Stage Settings/Min Runtime
◦ Standby Delay (See page 24) SELECT Settings/System Settings/More Settings/Stage Settings/Standby Delay
◦ Last Stage Hold (See page 24) SELECT Settings/System Settings/More Settings/Stage Settings/Lst Stage Hold
• The Oversize option sequence stages based on how many Throttling ranges is the system temperature away from the Target
Temperature. At one Throttling range below the Set Point, only one stage will be on. For each additional Throttling range below
the Set Point, an additional stage will be activated. The last stage on will be allowed to exceed the Set Point by one Throttling
range before turning off that stage. This helps to prevent the last stage from short cycling. See OSS Operation on page 5.
• When Oversize (OSS) is Selected, the following are the settings that directly affects this modes operation:
◦ Throttle (See page 24) SELECT Settings/System Settings/More Settings/Stage Settings/Throttle
Boiler Type
On/Off, 2-Stage, 3-Stage, or 4-Stage Default: On/Off
SELECT Settings/System Startup/.../Boiler Type
• The MPCQ Platinum can control multiple multi-stage boilers.
• The number of stages per boiler multiplied by the number of boilers will give the total
number of stages the MPCQ Platinum will control.
--- BOILER TYPE --
On/Off
2-Stage
3-Stage
4-Stage
--- TOTAL BOILER ---
8
[]
Total Boiler
Adjustable from 1 to 24 depending on Boiler Type Default: varies
SELECT Settings/System Startup/.../Total Boiler
• The MPCQ Platinum can control up to a total of 24 stages using a maximum of two Extension panels. Enter the total number of
boilers to be controlled.
• Make sure that the extension panels are connected (See page 12) and powered before adjusting the Total Boiler value.
On/Off Sequence
(Not Available for on/Off Boilers)
Lo/Hi/Lo/Hi or Lo/Lo/Hi/Hi Default: Lo/Hi/Lo/Hi
SELECT Settings/System Startup/.../On-Off Sequence
• The MPCQ Platinum can sequence multi-stage burners by boiler (Lo/Hi/Lo/Hi). In
this option, the MPCQ Platinum will start the rst boiler’s lowest stage followed by
the remaining stage for that boiler. Then, do the same for the following boilers.
--ON/OFF SEQUENCE --
Lo/Hi/Lo/Hi
Lo/Lo/Hi/Hi
• If the Lo/Lo/Hi/Hi option was selected, the MPCQ Platinum will start the rst boiler’s lowest stage followed by the second boiler’s
lowest stage until all boilers set to Auto mode has all their lowest stages on. When more stages are need, the MPCQ will start the
secondary stages starting with the lead boiler followed by the next and so on. This option is more efcient for many copper tube
and low mass boilers.
Sensor Fault
Stages On or Stages Off Default: Stages On
SELECT Settings/System Startup/.../Sensor Fault
• This selection determines the status of the stage relays when either the Outdoor Sensor
or System Sensor is at fault, sensor reading will display either OPEN or SHORT. In
addition, the Display second line will show SENSOR FAULT.
--- SENSOR FAULT ---
Stages On
Stages Off
• When Stages On is selected and a sensor is at fault, the System relay in addition to all the stages relays will energize. This will allow
all the boilers to run on their own limits.
• When Stages Off is selected and a sensor is at fault, all boiler stages relays and system relay will de-energize.
Day Light Saving
Enable or Disable Default: Enable
SELECT Settings/System Startup/.../Day Light Saving
• Enable this feature in areas where Day Light Saving is observed to account for the time
changes without having to manually change the time twice a year.
- DAY LIGHT SAVING
Enable
Disable

MPCQ Platinum Installation and Operation Manual 19
Date and Time Setting
Year, Month, Day, Time
SELECT Settings/System Startup/.../Set Year
• Entering the correct date and time assures that the MPCQ Platinum will follow the
schedules based on the correct time.
• Use the Select/Adjust button to change and accept date and time values.
• Internet controls will automatically adjust their date and time according to the time zone
specied in the Internet Building conguration.
----- SET YEAR -----
2000
[]
----- SET MONTH -----
January
February
----- SET DAY -----
1
[]

20 Heat-Timer Corp.
System Settings
SELECT: Settings/System Settings
The System Settings and System Settings 2 menus allow for adjusting and ne-tuning the
system for enhanced comfort and more fuel savings. The MPCQ Platinum behavior differs
based on the selected Control Mode (see Startup Settings on page 17).
- SYSTEM SETTINGS -
Season Winter
Set Point 10.0psi
Day Heat Adjust E
Night Heat Adjust B
Day Cutoff 55 F
Night Cutoff 40 F
System Run-On 2m
<More Settings>
SYSTEM SETTINGS 2
System Run-On 2m
Set Point 10.0psi
Setback 2.0psi
Boost Mode Disabled
<Stage Settings>
<Remote Interface>
Cycle
• Season (Winter or Summer)
• Day/Night Heat Adjustments (page 21)
• Day/Night Outdoor Cutoffs (page 21)
• System Run-On (page 22)
• Set Point (page 20)
• Boost Mode (page 22)
• Stage Settings (page 23)
• Remote Interface (Utilized with Remote
Communication Only) (page 6)
Set Point
• Set Point (page 20)
• Setback (page 22)
• Season (Winter or Summer)
• Day/Night Outdoor Cutoffs (page 21)
• System Run-On (page 22)
• Night Setback (page 22)
• Stage Settings (page 23)
• Remote Interface (Utilized with Remote
Communication Only) (page 6)
Season
Winter or Summer Default: Winter
SELECT Settings/Season when in Winter
SELECT Settings/System Settings/Season when in Summer
-------- SEASON -------
Winter
Summer
• When switched to Summer, the MPCQ Platinum will de-energize all the boiler stages
immediately and will de-energize the System relay after the Run-On Delay.
• When in Winter, the MPCQ Platinum will activate the heat whenever the Outdoor
temperature (OD) falls below the Outdoor Cutoff setting. Therefore, adjust this
setting to Winter during the heating season.
• When the heating season is over, it is a good practice to switch the MPCQ Platinum to
Summer setting.
ALERT
DO NOT turn power off to the MPCQ
Platinum when heating season is
over. If you do so, the battery will run
down and will have to be replaced.
Instead switch to Summer.
Set Point
Adjustable 0.0 psi to 30.0 psi Default: 10.0 psi
SELECT Settings/System Settings/Set Point in Set point Operation Mode
SELECT Settings/System Settings/More Settings/Set Point in Cycle Operation Mode
------ SET POINT ----
10.0 psi
[]
• The Set point is the pressure the MPCQ Platinum will use to control the system.
• The MPCQ Platinum will add, subtract, or hold the stages to maintain the system
pressure around the Set point.
• The system is expected to uctuate around the set point. The amount of uctuation
depends on the System and Stage Settings.
• In Cycle Operation Mode, the Set Point is the pressure at which heat has gotten all
the way through the buildings radiation system. Ideally, this point should be set to the
system pressure when the last radiator in the building gets warm.
WARNING
The boiler operating limit controls
must be set above the System
Sensor Set Point. Otherwise the
boilers will run on their limits.
• To set the System Sensor Set Point, use the following procedure:
1.Turn the heating system off and wait until the radiators are cool when touched.
2. Set the boilers high pressure operating limits to the highest value the manufacturer or system recommends.
3. Set the System Sensor Set Point to 10 PSI.
4. Start the heating system.
5. Go to the furthest radiator (in terms of longest piping distance) or to a radiator in a location known to get heat last.
6. Wait until the radiator is warm. Depending on the steam distribution, this may take up to half an hour, or even more.
7. Return to the MPCQ Platinum control and read the current System pressure. Adjust the System Sensor Set Point down to that
pressure. The Cycle-On message comes on.