Specifications

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Multi-Zone Systems
PS-MZ502 Multi-Zone System
24VAC, Multi-Zone and climate control system, to
control up to 31 zones
The PS-MZ502 is an advanced multi-zone system
controlling up to 31 Zones. It is the perfect climate control
system for small to medium residential, commercial or
industrial applications, enabling users to decide which
rooms in their house or office will be air conditioned or
closed.
Suitable for Heat/Cool or Heat Pump applications, the
PS-MZ502 allows multiple stages of Cool and Heat.
The Master Unit M500 allows users to view and change
zone parameters, such as local On/Off and set point. It is
also used to set the main system parameters.
Through the main board, features such as proportional Fresh Air and Bypass damper outputs are available. A special
pressure sensor input exists, in order to control the bypass damper. There are also 2 different fault inputs and 3
temperature sensor inputs.
Overall, the PS-MZ502 multi-zone system improves occupant comfort with maximum energy saving.
Features
y Main Input - 24VAC
y Controls up to 31 zones
y Energy saving, environmental friendly system
y Communication to Maxinet Thermostat network
y Selectable system configuration- Heat/Cool or Heat
Pump, 2 Pipe or 4 Pipe Fan Coil
y Up to 4 stages of Heat and 2 stages of Cool
y Selectable Heat output- Electric or Oil/Gas (jumper
selectable)
y Modes: Cool, Heat, Auto-change Over, Fan Only-
selectable through Master ONLY
y Output for dampers- 3-wire, 24VAC, general
purpose with P.I logic
* Zone dampers- open / close time adjustable
* Fresh Air Dampers- 2 logics for open/close:
o by timer (min. per hour) OR
o by temperature difference (T1-T2)
* Bypass Damper (0-10V) output- 2 options:
o by pressure (input for air pressure sensor) OR
o by number of rooms
y T1- Indoor temperature sensor
y T2- Outdoor temperature sensor
y T3- Duct temperature sensor (freeze protection in
Cool, overheat protection in Heat)
y Display temperature available in C° or F°
y 12-h Timer / 24-h Timer – DIP switch selectable
y Access zones from master (set point, on/off)
y Master unit with weekly program- jumper selectable
y Weekly Program- 7 days, 4 programs per day (start
time/stop time)
y 1 or 2 fan speeds
y Input for air pressure sensor- for bypass output
y Compressor delay- option
y Economy (Set Back) Mode available for individual
zones or all the system
y F1- Fault input, normally closed, voltage free- all
system OFF
y F2 - Fault input, normally closed, voltage free-
alarm indication on master
AC
HEAT
HP/HC
SPEEDS
13
/
EXT.
SENSOR
OPTION
ECONOMY
ALARM
PROG
TIMER