Jun 27, 2013  Replacing a Grasslin time clock in your saltwater chlorinator? Here are the instructions on setting the clock. Grasslin time clocks are available from Direct Pool Supplies.

1 DEFROST TIMER DTMV SERIES SPECIFIERS GUIDE Furnish and install a Grasslin DTMV40 defrost control which is field adjustable for 120V or 240V operation and shall have defrost initiation times settable to the quarter hour via captive trippers at 15 minute intervals. The defrost timer shall be housed in a NEMA 3R indoor/outdoor plastic enclosure. The relay output will be rated for 40A Resistive, 250VAC.

Defrost termination to be by time (and by a remote temperature or pressure switch). SPECIFICATIONS Switch Rating: 40A 120VAC, 208~240VAC 208~240VAC; 120VAC 16FLA, 120VAC 12FLA, 240VAC F Terminal: 30A 120~240VAC 120VAC; 208~240VAC Wiring Connections: Screw box lug terminals accommodate up to four #8 AWG wires. Environmental Ratings: Operating Temperature Range: 40 F to 131 F ( 40 C to 55 C) Operating Humidity: 0 to 95% non-condensing Dimensions: x x (H x W x D) Shipping Weight: 2 lbs.

Ordering Data Time Initiated, Remote Temperature, Pressure, or Time Terminated PART NO VOLTAGE MOUNTING TIMER BATTERY BACK-UP Duration DEFROST FREQUENCY DURATION NO/DAY MINIMUM DURATION INTERVAL DTMV40 120V, 208/240V, 60Hz NEMA 3R Outdoor Enclosure Synchronous N/A 1 to min. 15 minutes DTMV40-M 120V, 208/240V, 60Hz Mechanism Only Synchronous N/A 1 to min.

15 minutes DTMV40-B 120V, 208/240V, 60Hz Bracket Mount Synchronous N/A 1 to min. 15 minutes DTMV40-P 120V, 208/240V, 60Hz Panel Mount Synchronous N/A 1 to min. 15 minutes DTQMV40 120V, 208/240V, 60Hz NEMA 3R Outdoor Enclosure Quartz 1 week 1 to min. 15 minutes DTQMV40-M 120V, 208/240V, 60Hz Mechanism Only Quartz 1 week 1 to min.

15 minutes DTQMV40-B 120V, 208/240V, 60Hz Bracket Mount Quartz 1 week 1 to min. 15 minutes DTQMV40-P 120V, 208/240V, 60Hz Panel Mount Quartz 1 week 1 to min. 15 minutes DT140 Digi V, 50/60Hz NEMA 3R Outdoor Enclosure Electronic* 1 week 1 to min. 1 minute DT140 Digi /240V, 50/60Hz NEMA 3R Outdoor Enclosure Electronic* 1 week 1 to min. 1 minute Standard models are also available with 50Hz input in 208/240V *Rated at 30 Amps Universal Replacement = DTMV 40 PARAGON PRECISION * * * Recommended Pressure Switches: Johnson/Penn P170, Ranco 010 series, or Danfoss KP1 series. Pressure range approximately psi, Cut-in on pressure rise 400.

2 GENERAL PURPOSE TIMER GM40 Amber and Green LED Lights Indicate Power and Status Easy Multi-Voltage Field Adjustable DIP Switch for 120, 208/240 or 277 VAC New Compact VALOX NEMA 3R Outdoor Enclosure Replaces All Metal Enclosures Large Screw Terminals for Easy Wiring #8 AWG Ground Lug Termination Captive Trippers Can t Be Lost Independently Adjustable Trippers at 15 Minute Intervals Real Time Clock Face NO TOOLS REQUIRED! 3 GMX Series (24-Hour / 7-Day) The GMX Series Time Controls are universal, electromechanical time switches. They are a low cost alternative for applications that do not require more than 21A or The unit is mounted in a NEMA 1 Indoor or NEMA 3R Outdoor enclosure. APPLICATION The GMX is a light duty commercial time switch ideal for 24, 120, or 277 VAC single phase applications such as: Lighting Control Access Control Heating, Air-Conditioning Agricultural Facilities Pumps/Motors/Fan Control General Electrical Circuits 21 Amp. Rating NEMA 1 Indoor or 3R Outdoor Enclosure SPDT Switch Captive trippers with intervals of 15 minutes on 24-hour models (2hours on 7-day models) True clock face, easy to set Finger safe terminals Enclosure provides space for field added contactor or other accessories. 4 MIL 72 SERIES (24-Hour, 7-Day) 24-HOUR TIME CONTROL Time based control of lighting, ventilating, heating, cooling or other electrical loads in commercial and industrial applications. The MIL 72 time switches are available with a 24-hour or 7-day program dial with a SPDT switch (form C contact).

The MIL 72A series is intended for surface mounting. The control is completely enclosed in a plastic housing and includes a terminal cover and sub-base for installation and hard wiring. The MIL 72E is intended for flush (panel) mounting. All units are supplied with a clear plastic cover. Synchronous drive or quartz drive with battery backup 21A SPDT switch Captive trippers with interval as low as 15 minutes With or without 3-way override Real clock face Surface, flush, or DIN rail mount Complete Part Number = MIL 72A or E Followed by Suffix Code and Voltage. Example: MIL 72A STuZ-24 SYNCHRONOUS WITHOUT OVERRIDE WITH 3-WAY OVERRIDE QUARTZ 7-DAY CARRY-OVER**With 3-Way Override INPUT VOLTS SWITCH RATING 240 V RES MINIMUM ON/OFF TIME EVENT ON/OFF TIME STuZ-24 STuZH-24 QTuZH VAC SPDT 21A 15 min. STuZ-120 STuZH-120 QTuZH VAC SPDT 21A 15 min.