www.poolpak.com | 800-959-772538 | MPK Series - Installation, Operation and Maintenance
Normally, this valve is factory-mounted and wired inside the PoolPak® unit. However, if a remote valve is used, it
can be connected directly to the PoolPak® control panel. Terminal block T12 provides 24 VDC power and a control
signal. The actuator on the external valve must consume less than 5 VA at 24 VDC. The default control signal to the
actuator is 2-10 VDC. The voltage span of the control signal can be adjusted in the configuration menu.
Auxiliary Hot Water Control Valve (17)
The CPCS provides a signal to control a proportional 3-way valve for an auxiliary air heating system. Terminal block
T12.4-6 provides the analog signal for control of a hot water or steam valve.
Normally, this valve is factory-mounted and wired inside the PoolPak unit. However, if a remote valve is used, it can
be connected directly to the PoolPak® control panel. Terminal block T12 provides 24 VDC power and a control
signal. The actuator on the external valve must consume less than 5 VA at 24 VDC. The default control signal to the
actuator is 2-10 VDC. The voltage span of the control signal can be adjusted in the configuration menu.
Remote Air Condenser Enable Signal (18)
When mechanical air conditioning is selected, a separate contact closure control signal for each compressor system
is sent to the remote condenser on Terminals T9.18-23. This signal provides indication to the remote ACC that fan
operation is required. The controls in the ACC then modulate fans to maintain a preset discharge pressure. Terminals
T9.18-23 are not used by units equipped with an integral air cooled condenser.
Smart Pump Control Output (19)
The CPCS provides a contact closure to activate the PoolPak water loop pump when pool water heating and space
cooling are required. The output contacts may be directly connected to an external circuit provided it is 115VAC
maximum and less than 1A inductive.
Units equipped with a pool water heating condenser contain factory installed pool water temperature sensor(s) on
the inlet side of the pool water condensers.
If smart pump option is selected, PoolPak will provide a separate pool water temperature sensor to be field installed.
It must be mounted upstream of the PoolPak unit and the auxiliary water heater, where constant pool water flow
is expected. The sensor can be threaded directly into a 1/4” FPT fitting. Electrical connection should be made on
T3.5&6 (and T3.7&8 for split water application) with 22 AWG, copper, 2 conductor, shielded, twisted-pair cable.
Connect the shield drain wire to ground at the PoolPak unit end only.
Remote Exhaust Fan Interlock (S Only) (20)
The CPCS can provide a contact closure to enable a remote exhaust fan. These contacts will close during an
occupied time period in the CPCS occupancy schedule. The contacts may be directly connected to an external
circuit, provided it is 115 VAC maximum and the current does not exceed 1A inductive.
Contact Factory for any remote exhaust fan application.
Auxiliary Pool Water Heating System (21)
The auxiliary pool water heating system is not provided by PoolPak. The CPCS provides a dry contact closure signal
to indicate that auxiliary pool water heat is required. A second contact closure is also provided for units designed
to control water temperature in two separate pools (split pool water option).
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