To Next PageTo Next PageWhat to do if Cambridge Air Solutions Heater indicates a device fault?
If the Fault LED is on steady, it means a main code download is required. This could be because no application is loaded, the controller is in boot mode and needs a main code download, or there's a firmware mismatch between the PEAK controllers and the ZRF1811 Wireless Field Bus Router. In any of these cases, performing a main code download is the suggested solution.
What to do if Cambridge Air Solutions Heater loses power but is still connected?
If your Cambridge Air Solutions Heater is connected to power but remains off, you should check the output wiring for short circuits and then cycle power to the controller.
General| Brand | Cambridge Air Solutions |
|---|---|
| Model | M Series |
| Category | Heater |
| Language | English |
Information on contacting customer service for warranty questions.
Explains the meaning of WARNING, CAUTION, and NOTE indicators used in the manual.
Refers to specific ANSI/NFPA standards for aircraft hangar installations.
Refers to specific ANSI/NFPA standards for parking garage installations.
Describes the Maxitrol Series 14 discharge temperature control system.
Explains the Series 14 modulation control with space thermostat.
Details the Maxitrol Series 44 modulation controls for space temperature.
Describes the Series 44 tamper-proof controls and sensor placement.
Lists and defines various components used in system configurations.
Table detailing weights of horizontal mount components.
Table detailing weights of vertical mount components.
Illustrates the internal components and configuration of the heater.
Step-by-step guide for unpacking and verifying the heater unit.
Guidelines for selecting an appropriate installation location.
Details for installing the mounting curb for roof-top configurations.
Instructions for installing the heater on a roof top.
Steps for installing the heater on an outdoor stand.
Instructions for installing the heater through a wall.
Steps for installing the heater in an outdoor vertical configuration.
Instructions for installing the heater in an indoor vertical configuration.
Detailed instructions for connecting the gas supply to the heater.
Guidelines for electrical connections, grounding, and wiring.
Procedures for starting up heaters that do not use Variable Frequency Drives.
Initial checks for physical damage and proper installation of components.
Steps to verify the electrical supply voltage matches the nameplate.
Procedure to verify the gas supply pressure meets specifications.
How to check the blower's rotation direction.
Verifying pressure drop across the burner profile plate.
Measuring motor current to ensure it's within acceptable limits.
Procedure for calculating and setting burner manifold pressure.
Steps to check for gas leaks in the gas valve seat.
Procedure for setting the minimum fire for the burner.
Adjusting the initial firing rate for proper burner ignition.
Final checks and settings before operating the heater.
Verifying the basic operation of the remote control station.
Initial checks for physical damage and proper installation of components for VFD units.
Verifying the electrical supply voltage for VFD units.
Verifying gas supply pressure for VFD units.
Checking the blower's rotation direction for VFD units.
Verifying pressure drop for VFD units.
Measuring motor current at high speed for VFD units.
Setting manifold pressure for high speed on VFD units.
Verifying pressure drop at low speed for VFD units.
Setting manifold pressure for low speed on VFD units.
Adjusting the low fire bypass setting on the modulating valve.
Steps for safely shutting down the heater unit.
Describes the sequence of operations for the unit in different modes.
Details the features and operation of the electronic thermostat.
How to set the ON and OFF temperatures for the thermostat.
Calibrating the thermostat for accurate temperature readings.
Features and operation of the TSS programmable controller.
Setting the controller's clock and date for proper scheduling.
Configuring the controller for daylight saving time adjustments.
Setting ON/OFF temperatures for the TSS controller in heating mode.
Programming daily schedules for heating and ventilation modes.
Setting the setback temperature for the OFF time schedule.
Using the override timer to temporarily adjust setback temperatures.
Table for scheduling heating cycles.
Table for scheduling ventilation cycles.
Setting temporary holiday periods to override normal schedules.
Overview of the BACnet controller for BAS integration.
Operational sequence for unit heaters in occupied mode.
Operational sequence for makeup air units in occupied mode.
Operational sequence for makeup air units with PID control.
Operational sequence for makeup air units with PID and ON-OFF control.
Operational sequence for summer ventilation mode.
Operational sequence for unoccupied mode.
Default operational settings for the controller.
Instructions for lubricating blower bearings.
Details on lubricating motor bearings.
Procedure for checking and adjusting belt tension.
Steps for cleaning the burner assembly.
Procedures for cleaning the gas valve.
Detailed instructions for disassembling and cleaning ASCO gas valves.
Information on ordering rebuild kits for ASCO valves.
Periodic checks for leaks in the gas train assembly.
Types of filters and their installation.
Procedures for cleaning and replacing filters.
Filter selection guide for horizontal mount units.
Filter selection guide for vertical mount units.
Overview of the Direct Evaporative Cooling section.
Important safety warnings and precautions for handling the unit.
Procedures for inspecting the unit upon receipt.
General guidelines and safety warnings for unit installation.
Diagram and notes for roof top configuration with Evap Unit.
Instructions for water supply and drain valve installation.
Optional auto drain system with freeze protection.
Schematic diagram of the fill valve system.
Schematic for drain, overflow, and makeup water piping.
Wiring details for the DEC module's electrical panel.
Installation instructions for media cooling pads.
Step-by-step procedure for initial start-up of the DEC unit.
Describes the normal operating sequences and cycles.
Procedures for maintaining the DEC unit.
Dimensions for roof and wall openings for various models.
Dimensions for heater discharge and duct sizes.
Diagrams illustrating gas train configurations for different models.
Isometric views of the electrical control enclosures for various models.
Wiring diagrams for different control systems and models.
Diagrams showing typical wiring connections for control systems.
Description of Maxitrol Series 14 gas control system.
Description of Maxitrol Series 44 gas control system.
Explanation of ITC for modulating discharge temperature.
Details on the SC25S analog signal conditioner.
Description of the standard Remote Control Station.
How to adjust discharge temperature using the RA dial.
Using space thermostat with Series 14 controls.
Tamperproof controls for Series 44 systems.
Series 44 controls for hazardous area applications.
Wiring and function of the OET.
Details on the fixed-temperature non-adjustable thermostat.
Features of the TSS programmable temperature controller.
Function of the clogged filter indicator light.
Manually turning the heater on/off.
Interlocking the heater with an exhaust fan.
Installation of the thermistor sensor.
Using two sensors for temperature averaging.
How airflow switches sense pressure drop.
Function of the amplifier in controlling gas valve.
Description of the internal convenience outlet.
Operation and adjustment of the damper motor.
Function of the discharge temperature sensor.
Information about the non-fused disconnect switch.
Mechanical interlock for exhaust fan operation.
Function of the flame safeguard relay in ignition.
How the flame rod detects flame presence.
Purpose of the fuse block for branch circuit protection.
Safety devices for gas pressure fluctuations.
Required when gas supply exceeds nameplate rating.
Manual reset limit for discharge air temperature.
Indicates pressure drop across the burner profile plate.
Controls pressure drop across the burner profile plate.
The hot surface igniter as the ignition source.
Description of optional interior lights.
Facility for checking gas valve seat seal.
Serves as manifold pressure regulator and gas shut-off valve.
Controls burner manifold pressure.
Components for motor starting and overload protection.
Provides multiple functions for control systems.
Switches for local or remote control selection.
Part of Series 44 system for space temperature sensing.
Transformer providing control voltages.
Troubleshooting steps for when the blower does not operate.
Diagnosing issues when blower runs but no heat is produced.
Troubleshooting when blower runs, no heat, and flame safeguard relay locks out.
Issues when blower runs, burner fires, but flame safeguard relay locks out.
Diagnosing short cycling issues with blower and heat.
Steps to take when the high limit switch is tripped.
Troubleshooting when the unit runs continuously and won't cycle off.
Diagnosing issues with modulating valve operating at continuous high fire.
Diagnosing modulating valve issues at continuous low fire.
Troubleshooting steps for erratic or pulsating burner flame.
Introduction to the ASHRAE Standard 90.1.
Explains the purpose and scope of ASHRAE Standard 90.1.
Outlines requirements for Cambridge heaters to comply with Standard 90.1.
Section for recording maintenance activities performed on the unit.
