H2 Thermostatic MixersUniversal Box 4b 2 1 Y1 WAY 1 5 3a EI 1EXIT 1 IT 1EXIT 1 3b HOT COLD HOT COLD H C OPEN 4a OPEN 4b CLOSE COLD HOT CLOSE L T 5 IT 2 EXIT 1 1 3 5 HOT COLD IT 4 EXIT 2 298