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Explains the designation for different design series of the units.
Details the numerical codes for unit capacities in BTUs.
Lists available coil options for unit configuration.
Specifies voltage codes for unit power supply.
Provides a key to model codes based on features and range.
Guidance on selecting and preparing the installation site for optimal performance and service.
Step-by-step guide for adjusting variable pitch motor sheaves for proper airflow.
Proper methods for installing condensate drain piping and traps.
Procedures and checks for successful unit operation in cooling mode.
Procedures and checks for successful unit operation in heating mode.
Troubleshooting common problems encountered during initial unit startup.
Specifies the acceptable ambient and water temperature ranges for operation.
Details water enthalpy values for different operating conditions.
Guidelines for power supply, wiring, and fusing.
Permissible voltage ranges for unit operation.
A detailed wiring diagram for a single compressor Mark IV/AC unit.
Wiring schematic for a single compressor MicroTech unit.
Details on connecting wires to the MicroTech controller terminals.
Wiring schematic for a dual compressor MicroTech unit.
Details on connecting the auxiliary module on MicroTech units.
Specific operational features and functions of Mark IV/AC control systems.
Detailed sequence of operations for Mark IV/AC units.
Description of the functions of each terminal on the Mark IV/AC board.
Details the meaning of LED colors and patterns for different modes.
Information on remote reset, fault retry, and general input usage.
Wiring diagrams for connecting a 7-day programmable thermostat.
Wiring diagrams for connecting a non-programmable thermostat.
Wiring for programmable thermostats on dual-circuit units.
Wiring for non-programmable thermostats on dual-circuit units.
Instructions for installing an optional remote temperature sensor.
Details the pump restart relay option and its wiring.
Illustrates the typical installation of a motorized valve assembly.
Explains how the BSK interacts with the Mark IV/AC board for duct heater control.
Shows various ways to connect the auxiliary relay for different functions.
Lists and explains the four types of output control signals available.
Information on the auxiliary module for additional output signals.
A visual guide to identify and resolve unit operational issues.
Recommendations for filter replacement and fan motor lubrication.
Procedures for checking and cleaning the condensate drain pan.
Importance of recording and comparing performance data.
Common causes for unit lockouts and protective shutdowns.
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General